Maximo’s siding guide calls for acclimation at the installation location before fastening.

Builders FirstSource · Issaquah, Washington
Source the profile.
Plan the lead time.
A contractor and architect guide to ordering, jobsite staging, moisture verification, and installation prep for Maximo thermally modified wood through Builders FirstSource Issaquah.
Before you contact the yard
Bring a specification,
not only a species name.
- 01
Choose an exact profile
Identify Maximo species, nominal size, and joint geometry (e.g., 1x6 Plus End Match or 1x6 Nickel Gap).
- 02
Define the application & rainscreen
Specify siding, soffit, decking or trim, then confirm the supporting structure, ventilation and fastening plan for the selected profile.
- 03
Estimate area + cutting allowance
Build the allowance from available lengths, layout, joint locations, appearance matching and field cuts rather than using one percentage for every project.
- 04
Coordinate BFS delivery
Confirm jobsite access, offload staging area, and lead times with Builders FirstSource Issaquah.
Jobsite Receiving & Moisture Protocol
Jobsite staging &
installation best practices.
Thermally modified wood behaves differently from untreated timber on the jobsite. Use these staging practices to protect the material before installation:
- Level Support: Store bundles elevated from soil, wet concrete and standing water on evenly spaced, level supports.
- Weather Protection: Keep material covered while allowing ventilation around the bundle.
- Sharp Tooling: Use sharp, well-maintained blades and support the board close to the cut.
- Field Cuts: Treat exposed cuts and end grain according to the current Maximo and coating-system instructions.
Test the setup on an offcut and protect detailed edges from impact.
Confirm screw or nail type, length and placement for the selected profile.
Review equipment, site access, schedule and fees for the project address.

Catalog Available by Consultation
21 Maximo profiles.
One project-specific choice.
Browse Maximo profiles when you know the intended size and application. Start with a wood comparison when the project brief currently calls for cedar, hemlock, or Douglas Fir.
21 Profile Starting Points
Where to buy in Issaquah
Builders FirstSource Issaquah
Catalog available by consultation. Contact the Issaquah team to confirm availability, sample kits, and lead time for your selected Maximo profile.
Issaquah, WA 98029
(425) 391-8000
Monday–Friday, 7:00 AM–4:00 PMDealer information verified August 31, 2026. No in-stock claim is made on this site.
Request a local quote
Put this profile
on your project.
Tell us what you are building. Our team will review your wood selection and contact you to coordinate a Maximo consultation with Builders FirstSource Issaquah.
Lumber Yard FAQs
Ordering & Staging
Questions
How do I place an order for Maximo Thermo at Builders FirstSource Issaquah?+
Contact the BFS Issaquah team (5210 E Lake Sammamish Pkwy SE) or submit your project brief through this site. Bring your specific Maximo model number, square footage, application type, and project timeline for consultation.
Does thermally modified wood require jobsite acclimation before installation?+
Store Maximo Thermo off the ground on flat, level supports under breathable weather protection. Keep the material dry and follow the current Maximo storage and acclimation instructions before installation.
How do I test moisture content on thermally modified wood?+
Thermal modification can affect meter readings. Check the meter manufacturer’s correction guidance for thermally modified material and confirm the method with the project professional when a moisture threshold is required.
Can BFS Issaquah coordinate jobsite delivery?+
Ask the Issaquah team to confirm available delivery services, equipment, service area, site-access requirements, schedule and fees for the project address.
Dealer & product resources