Hardwood · Local material consultation
Cumaru in Issaquah, WA
Cumaru may appear in an Issaquah decking search alongside other tropical hardwoods. A useful comparison includes the actual board package and installation plan. Maximo Thermo Ash should be evaluated on the same basis, with the exterior profile named before the quote is prepared.

Decking choices and installation planning
What to specify
before you order.
Ask the Cumaru supplier to identify the material clearly and show a representative color range. Include available lengths, net dimensions and any machining in the request. For Maximo, use the cataloged Thermo Ash profile so the comparison reflects purchasable boards rather than broad species categories.
Plan butt joints, perimeter details and transitions to stairs before comparing waste allowances. A deck’s shape affects the takeoff; no single percentage fits every board layout. Send the Issaquah team a dimensioned sketch and call out fascia or other non-walking surfaces separately.

Cumaru & Thermo Ash
Bring Maximo
into the comparison.
Thermo Ash brings a modified hardwood option into a quote otherwise centered on tropical decking. Its cataloged dimensions and application list provide clear selection inputs. Installation effort and total cost still need a project quote, and neither material should be assigned an unsupported service-life guarantee.
For your Issaquah quote, identify which surface is siding, ceiling, decking or trim. The profiles below link to catalog dimensions and valid applications, helping the local team discuss a specific product with you.
Explore Thermo AshThe prefinish decision
Approve the finish.
Plan the installation.
If color consistency matters, approve enough coated boards to see variation. Ask whether the selected Maximo decking profile can be supplied with the requested prefinish, and include the maintenance products and cut-end treatment in the package discussion.
Include finishing in the quote
Ask which factory-prefinished options are available for the selected Maximo SKU. Record the color, sheen, coating system, field-cut treatment and care instructions. Compare that package with the labor, access and scheduling needed for onsite finishing.
Plan your prefinished packageMaximo profiles to discuss
Thermo Ash
for the right surface.

1x6 Plus S4S E4E End Match
A dense thermally modified hardwood with pronounced grain and a deep, architectural tone.
Profile & applications →
5/4x6 S4S E4E End Match
A substantial end-matched board built for bold surfaces and high-use exterior spaces.
Profile & applications →
2x4 S4S E4E
Hardwood strength and dimensional stability in a versatile structural-looking profile.
Profile & applications →
2x6 S4S E4E
A broad, solid profile with strong grain for decking, trim and architectural details.
Profile & applications →
1x10 S4S E4E
A wide hardwood trim board for fascia, frames and refined exterior transitions.
Profile & applications →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.
Before ordering
Cumaru
project questions.
Can a Cumaru fastening system be reused with Maximo?+
Confirm compatibility with the current Maximo instructions for the exact profile. Similar board dimensions do not establish that a clip, screw or edge treatment is interchangeable.
What should I send for a cumaru and Maximo comparison in Issaquah?+
Include the intended surface, approximate area, desired board appearance, finish preference and project timeline. Mention Cumaru in your brief. We record your contact details and the wood you are comparing so our team can coordinate a relevant Maximo consultation with BFS Issaquah.
Where do I ask about buying Thermo Ash locally?+
Contact Builders FirstSource Issaquah at (425) 391-8000, 5210 E Lake Sammamish Pkwy SE, Issaquah, WA 98029, or use our request form. Confirm your selected Maximo profile, availability, finish options and lead time before ordering.
Does this page confirm cumaru inventory at BFS?+
No live inventory is shown. Cumaru is discussed as a material comparison; the local buying consultation here concerns Maximo Thermo. Ask BFS separately about any traditional lumber you need.
Related wood choices
Compare another material.
References for your specification