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Milled in Chico, California

Log Home Kits in Colorado

Sierra Log & Timber mills red cedar log home packages in Chico, California, and ships them directly to jobsites across the continental United States, Colorado included. Colorado has no statewide building code, so a Colorado build has two questions to settle locally before the plans are drawn: the snow load the county, city or town publishes for the site, and whether the parcel is in the wildland-urban interface, where the 2025 Colorado Wildfire Resiliency Code applies to new construction.

Checked 11 November 2026

How a package reaches a Colorado site

Sierra ships complete building material packages directly to jobsites across the continental United States, Colorado included, by direct-to-parcel freight delivery from the mill in Chico, California.

A package is not a rigid precut kit. Sierra's Smart Cut™ system pairs panel layout drawings with timbers labeled with exact lengths and notch locations, so the builder gets factory accuracy and the flexibility to adapt on the ground.

Every component is engineered in the Sierra facility before it ships, and the builder receives a complete, labeled shell package.

It is a type of precut… but different. The concept was built around builder speed, limiting butt joints, increased log efficiency and the ability to stage “just in time” trucks.

Larry Trimboli, founder of Sierra Log & Timber

What Colorado building departments publish about snow load

The roof, the spans and the log sizes are designed to the snow load for the site, and that load comes from the rule in force where the house is built, not from the mill. The table lists what each Colorado rule on file says, in its publisher's own words, with the page it was read from and the date it was read.

Colorado has no statewide building code, and the rules on file are each county's, city's or town's own. Some publish one figure, some a table by elevation, and some send builders to the ASCE 7-22 Hazard Tool.

City rules are listed after the county rules, each marked with the town it applies inside. Where a department sets the load site by site, the parcel's figure comes from that department.

Snow load rules on file for Colorado
WhereWhat the rule saysSource
Archuleta County

Archuleta County Building Department does not publish one figure for every site; ask the building department for your parcel.

In its words: “Roof design snow load = 65 psf / 45 psf southwest corner of county · Ground design snow load 93 psf / 64 psf southwest corner of county”

2024 Residential Building Packet – Archuleta CountyRead 2 November 2026
Boulder County

Boulder County Community Planning & Permitting does not publish one figure for every site; ask the building department at 303-441-3930 for your parcel.

In its words: “R301.2.3 Snow Loads. Ground snow loads shall be determined by the building official utilizing the Boulder County map, “Boulder County Ground Snow Load Map,” as amended.”

Boulder County Building Code Amendments - Effective July 1, 2026Read 2 November 2026
Chaffee County

Chaffee County Building Department does not publish one figure for every site; ask the building department for your parcel.

In its words: “Local Amendments to the Codes Ground Snow Load - See Snow Load Map Wind Speed - 115 mph Vult.”

Current Adopted Codes & Design Criteria - Chaffee County, ColoradoRead 4 November 2026
Clear Creek County

Clear Creek County Building Department does not publish one figure for every site; ask the building department at 303-679-2300 for your parcel.

In its words: “Snow Load Design The roof structure shall be designed for snow loads as determined by the Snow Load Design Table No snow load reductions shall be allowed. The Snow Load requirements for a specific property can be found on Clear Map, the County online mapping service at the ClearMap website .”

Design Criteria | Clear Creek County, CORead 4 November 2026
Douglas County

Douglas County Building Division publishes a ground snow load table by elevation: 30 psf below 6,000 ft, rising to 50 psf at 7,500 ft. Above 8,000 ft it gives no figure.

In its words: “Snow Loads are determined according to elevation ELEVATION RANGES (Feet): 5152 – 5999 | SNOW LOAD (PSF): 30 | ELEVATION RANGES (Feet): 6000 – 6499 | SNOW LOAD (PSF): 35 | ... 7500 – 7999 | SNOW LOAD (PSF): 50 | ELEVATION RANGES (Feet): 8000 – 8499 | SNOW LOAD (PSF): 55”

Design Information - Douglas CountyRead 4 November 2026
Eagle County

Eagle County Building Division does not publish one figure for every site; ask the building department at (970) 328-8761 for your parcel.

In its words: “Ground snow load may also be determined in accordance with ASCE-7, the Building Division shall require application of the most restrictive loads between the ASCE-7 and the “2016 Colorado Ground Snow Map”.”

Eagle County Building Resolution (Attachment A, January 21, 2025)Read 2 November 2026
El Paso County

Pikes Peak Regional Building Department (El Paso County) publishes a ground snow load table by elevation: 43 psf below 7,000 ft, rising to 57 psf at 7,000 ft.

In its words: “Grade plane Below 7000’ At or above 7000’ Ground snow load - Pg : 43 psf uniform Ground snow load - Pg : 57 psf uniform”

Basic Design Information – Pikes Peak Regional Building DepartmentRead 2 November 2026
Grand County

Grand County Building Department does not publish one figure for every site; ask the building department at 970-725-3255 for your parcel.

In its words: “The snow load varies throughout the county based upon elevation and location. Please contact the Building Department at 970-725-3255 with your legal description (subdivision or section, township, range, and elevation) to get the correct answer for your location.”

Building FAQs – Grand County, CORead 4 November 2026
Gunnison County

Gunnison County Building Office does not publish one figure for every site; ask the building department for your parcel.

In its words: “All new construction placed in unincorporated Gunnison County shall be constructed so as to meet the snow load requirements at the proposed building site. The value of ground snow loads at building sites shall be determined through "2016 Colorado Design Snow loads,"”

Climate Design Criteria | Gunnison County, CORead 4 November 2026
Jefferson County

Jefferson County Building Safety publishes a ground snow load table by elevation: 43 psf below 6,500 ft, rising to 172 psf at 10,500 ft. Above 10,500 ft it gives no figure. Its minimum roof snow load is 30 psf.

In its words: “TABLE R301.2.3 SNOW LOAD TABLE Minimum Roof and Ground Snow Load 30/42.9 p.s.f | Elevation | Ground Snow Load (p.s.f.) | Roof Snow Load (p.s.f.) | | <6500 | 43 | 30 | | 6500 | 43 | 30 | | 6625 | 46 | 32 | ... | 10500 | 172 | 120 |”

Snow Load Table R301.2.3 – 2024 Jefferson County Building Code SupplementRead 4 November 2026
Kiowa County

Kiowa County Land Use sends builders to the ASCE 7-22 Hazard Tool for the snow load at a site and publishes no table of its own.

In its words: “All plans are required to be designed for ground snow load (Pg) and wind load (Vult) as specified by the latest ASCE/SEI 7 Standard Version from the ASCE Hazard Tool (currently ASCE/SEI 7-22).”

Land Use | Kiowa CountyRead 2 November 2026
La Plata County

La Plata County Building Department does not publish one figure for every site; ask the building department for your parcel.

In its words: “| Elevation | Live Roof Snow Load (p.s.f.) | Ground Snow Load (p.s.f.) | ... | < 6,500 | 40 | 57 | 8,250 | 97 | 136 | | 6,750 | 45 | 64 | 8,500 | 105 | 147 |”

La Plata County Code Chapter 18 Buildings and Building Regulations (Table R301.2(3))Read 4 November 2026
Larimer County

Larimer County Building Division publishes a ground snow load table by elevation: from 55 psf at 0 ft to 160 psf at 9,000 ft. Above 9,000 ft it gives no figure. Its minimum roof snow load is 30 psf.

In its words: “TABLE 1608.2 (1) GROUND SNOW LOADS FOR LARIMER COUNTY |Ground Elevation not exceeding (feet)|Ground Snow Load p| |5,000|55| |6,000|70| |6,500|80| |7,000|95| |8,000|110|”

2024 Larimer County Building Code AmendmentsRead 2 November 2026
Park County

Park County Building Department sends builders to the ASCE 7-22 Hazard Tool for the snow load at a site and publishes no table of its own.

In its words: “The phase out of the fixed wind load and digitized ground snow loads from SEAC 2016 was completed on December 31, 2023 and all plans submitted on or after January 1, 2024 are required to be designed for ground snow load (Pg) ... from the ASCE Hazard Tool (currently ASCE/SEI 7-22)”

Design Loads for Structures | Park County, CORead 2 November 2026
Pitkin County

Pitkin County Building Department does not publish one figure for every site; ask the building department for your parcel.

In its words: “Section 1608 Ground Snow Loads is hereby deleted and is replaced with the following: The value of roof (or other member) snow load shall be equal to the “”

Title 11: Buildings and Construction – Pitkin CountyRead 4 November 2026
Routt County

Routt County Regional Building Department does not publish one figure for every site; ask the building department for your parcel.

In its words: “Ground Snow Load: Routt County is a Case Study Zone for Ground Snow Load Applicants Must Click on our Ground Snow Load Map Below to find your Ground Snow Load Value per Site.”

City of Steamboat Springs Building Permit Application Process – Routt County Regional Building DepartmentRead 4 November 2026
San Miguel County

San Miguel County Building Department does not publish one figure for every site; ask the building department at 970-728-4382 for your parcel.

In its words: “1608.2 Ground snow loads. Amend to read: The ground snow loads to be used in determining the design snow loads for roofs shall be determined in accordance with ASCE 7 or Colorado Design Snow Loads, copyright 2016 by the Structural Engineers Association of Colorado.”

Amendments to the 2018 International Building Code – San Miguel CountyRead 2 November 2026
Summit County

Summit County Building Inspection Department does not publish one figure for every site; ask the building department at 970-668-3170 for your parcel.

In its words: “|Subdivision||Insp. Zone|ROOF Snow Load|Soils Rept.|Septic/ Sewer|Well/ Water|Fire Dist|Utility /Elec|Plan/Eng|Subdivision Comments|Impact Fee| |Summit Center||4|75||18|27|62|71|40||YES|”

Summit County Building Inspection Department MatrixRead 2 November 2026
Teller County

Teller County Building Division publishes a ground snow load of 57 psf. Its minimum roof snow load is 40 psf.

In its words: “SNOW LOAD; Ground snow load shall be 57 psf and roof snow load shall be 40 psf for all structures in Teller County.”

Teller County Building CodeRead 2 November 2026
Inside Aspen, Pitkin County

City of Aspen publishes a ground snow load of 100 psf.

In its words: “Climate & Geographical Design Criteria Item: Ground snow load | Criteria: 100 psf”

Currently Adopted Building & Energy Codes | Aspen, CORead 2 November 2026
Inside Crested Butte, Gunnison County

Town of Crested Butte publishes a ground snow load of 100 psf.

In its words: “Sec. 18-2-30. Amendments. Ground Snow Load: Wind Design Speed: 100 lbs. per square foot Not Determined”

Town Council packet 8/5/2025 – Sec. 18-2-30 Amendments, Town of Crested ButteRead 2 November 2026
Inside Durango, La Plata County

City of Durango Building Division does not publish one figure for every site; ask the building department for your parcel.

In its words: “For IRC projects: Ground snow loads shall be determined in accordance with Figure R301.2(3) or shall be determined in accordance in with Section 1608 of the International Building Code . ... Alternatively, the design professional can choose to use the ground snow load provided on the La Plata County GIS”

Building FAQs | Durango, CORead 4 November 2026
Inside Granby, Grand County

Town of Granby does not publish one figure for every site; ask the building department for your parcel.

In its words: “Roof snow load as determined by Grand County Snow Load/Snow Zone Map or Grand County subdivision map”

Town of Granby Code § 15.05.050 International Residential Code (eCode360)Read 2 November 2026
Inside Lakewood, Jefferson County

City of Lakewood Public Works – Permits publishes a ground snow load of 30 psf. Its minimum roof snow load is 30 psf.

In its words: “Design Loads: Frost Depth: ... 36 inches Ground Snow Load: ... 30 psf non-reducible Minimum Roof Snow/Live Load: ... 30 psf (Minimum)”

City of Lakewood – Codes and Loads (Permit Process Assistance Handout)Read 4 November 2026
Inside Red Cliff, Eagle County

Town of Red Cliff publishes a ground snow load of 120 psf. Its minimum roof snow load is 85 psf.

In its words: “Ground snow loads for Red Cliff equal 120 pounds per square foot per the Structural Engineers Association of Colorado (SEAC).”

Chapter 18 - Building Regulations | Town of Red CliffRead 2 November 2026
Inside Vail, Eagle County

Town of Vail publishes a ground snow load of 142 psf. Its minimum roof snow load is 80 psf.

In its words: “1608.2 Ground and roof snow loads. The ground snow loads to be used in determining the design snow loads shall be 142 pounds per sq/ft.”

Vail Town Code § 10-1-2 Amendments to the International Building Code (American Legal)Read 2 November 2026
Inside Woodland Park, Teller County

City of Woodland Park (served by Pikes Peak Regional Building Department) publishes a ground snow load table by elevation: 43 psf below 7,000 ft, rising to 57 psf at 7,000 ft.

In its words: “Grade plane Below 7000’ At or above 7000’ Ground snow load - Pg : 43 psf uniform Ground snow load - Pg : 57 psf uniform”

Basic Design Information – Pikes Peak Regional Building DepartmentRead 2 November 2026

Building in Colorado's wildland-urban interface

The 2025 Colorado Wildfire Resiliency Code is a state minimum code that applies to new construction and to significant exterior alterations and additions within the wildland-urban interface. It is not a retrofit code.

The code sorts the interface into two fire intensity classes. Class 1, low fire intensity, carries the baseline requirements for new construction, and Class 2, moderate to high fire intensity, adds further requirements to all of Class 1's.

Its requirements fall into two categories: structure hardening, the construction materials and methods that make a building resistant to ignition from embers and flames, with roofing, exterior walls and decking given as examples, and site management, which reduces fuel loads around a structure.

A local governing body either adopts the map the state provides or develops a local one, so the map in use for a parcel is a question for the local code official.

Source: Colorado Division of Fire Prevention and Control, CWRC What and Why

Who issues the permit, and how long it takes

The Colorado Office of the State Architect states that Colorado has no statewide building code and that building codes are primarily adopted and enforced at the local level, so the department to ask is the county's or the municipality's.

The Colorado Division of Housing lists sixteen local jurisdictions it knows to have no building department: Baca, Cheyenne, Costilla, Crowley, Custer, Delta, Dolores, Kit Carson, Mineral, Montezuma, Phillips, Prowers, Saguache, Sedgwick, Washington and Yuma counties. Of Montezuma County it says the county does not issue Certificates of Occupancy or enforce any residential building codes, but does require the proper permits before building.

Before the plans are drawn, ask the department that issues the permit what snow load it requires for the site.

This is very open ended due to a lot of factors: terrain, design and complexity and the state you are building in. So on a fast track, you can design and build within 6 months if you are not in California or states like this that have heavy permit processes. California and other heavy permit states take approx. 4-6 months to design, engineer and get a permit (and sometimes longer due to the permit process). Once that is done, the average length of time of the build is 6-12 months depending on the builder, the location and the design complexity. Yes it can take longer than that in heavy snow areas and/or areas with really extreme land developments that have to take place to build. Of course, an owner builder can take forever to build any home. Outside of California is approximately the same for building but much faster for the design to permit process.

Larry Trimboli, founder of Sierra Log & Timber

Sources: Colorado Office of the State Architect, Building Codes; Colorado Division of Housing, Jurisdictions without Building Departments

Colorado county pages

Each link opens that county's page in the Sierra Log & Timber resources directory.

Colorado in the resources directory

Log home kits by state

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