We can help you select the proper wood and advise you on how to install it. We also carry specialized tools and hardware to help you install your FSC® Certificated Hardwood Decking.

FSC® Certified Hardwood Decking is great because it last 25 plus years so it is also a long term product that will not need replacement nearly as quickly as soft wood options.

The FSC® certification ensures buyers of a legal and environmentally sustainable supply chain and also ensures compliance with government procurement regulations.

FSC® Certified Hardwood Decking is a great way for earning credit in LEED green building projects. For additional questions about LEED, please visit www.usgbc.org.


Ipe Decking / Wood Frequently Asked Questions (FAQ)

What spans can I expect from Ipe?

Due to the strength of Ipe, you can expect the following spans:

  • 1x (net 3/4″) – up to 16″ on center
  • 5/4x (net 1″) – up to 24″ on center
  • 2x (net 1-1/2″) – up to 32″ on center
  • Diagonal patterns may require shorter joist spacing

We recommend that you check with your local building code before deciding on joist spans.

What grades of Ipe do you sell?

Thompson Mahogany Company provides “premium” all heart grade which gives a truly outstanding appearance.  Our decking boards come  “three sides clear” (one clear face and two clear edges).

Can Ipe be installed on existing SYP pressure treated framing?

Yes, although we recommend that a professional inspect the integrity of the existing framing to ensure it is stable, usable and passes your current city code requirements.  We carry the necessary component parts to frame the undercarriage of Ipe decking.

Can Ipe be painted?

It is our experience that due to the wood’s density, oily nature and alkalinity, Ipe does not accept most paints.  For more details on painting Ipe, please contact us to discuss.

How do I maintain that original dark, rich color?

Ipe will weather to a silver patina if you leave it in its natural state.  Depending upon your exterior conditions, it can noticeably turn within a few months and can be fully gray within a year.  Should you wish to keep the wood rich and dark, apply an oil-based UV inhibitor finish specifically designed for hardwoods such as Ipe.  There are numerous available brands, and we recommend Messmer’s UV Plus for Hardwood Decks.

Sizes – Ipe & Cumaru decking typically runs in lengths from 7′ to 20′. Please call or contact us to find out our current stock levels, sizes and lengths available as they vary at any given time. We also offer millwork services for special sizes or profiles.

Wholesale Minimums – Thompson Mahogany does not require minimum orders for its decking. Stocking program customers as well as non-stocking customers may buy in units or job lots through our “One Deck at a Time™” program. Please note that there is a price difference in wholesale unit orders and wholesale job lot orders. Contact us for pricing details.

You may also be interested in:

Why Hardwood Changes Colors?

Ipe vs Composite Decking

Ipe Decking vs Cedar Decking

Wholesale Ipe Decking Stock Information

FSC® Certified Ipe Decking

</p> <p>Nominal SizeNet SizeGradesDryingLengths
1 x 43/4" x 3-1/2"Premium, FASAD7′-20’
1 x 63/4" x 5-1/2"Premium, FASAD7′-20’
1 x 83/4" x 7-1/4"Premium, FASAD7′-20’
5/4 x 41" x 3-1/2"Premium, FASAD7′-20’
5/4 x 61" x 5-1/2"Premium, FASAD7′-20’
5/4 x 81" x 7-1/4"Premium, FASAD7′-20’
2 x 21-1/2" x 1-1/2"Premium, FASAD3′-20’
2 x 41-1/2" x 3-1/2"Premium, FASAD7′-20’
2 x 61-1/2" x 5-1/2"Premium, FASAD7′-20’
2 x 81-1/2" x 7-1/4"Premium, FASAD7′-20′</p> <p>

FSC® Certified Cumaru Decking

</p> <p>Nominal SizeNet SizeGradesDryingLengths
5/4 x 61" x 5-1/2"Premium, FASAD7’ - 20′</p> <p>

Do you need your Ipe kiln-dried (KD)? We have the on-site kilns and experienced kilnsmen to do the job. Call us for pricing and lead times.

TMC understands that your customers want to buy everything for the project in one place if possible. That’s why we offer all the accessories in job-lot quantities so you don’t have to buy a pallet of stain just to complete an order. We keep the following accessories in stock:

Species Information

Ipe (Brazilian Walnut, Lapacho, Pau Lope™)

BOTANICAL NAME: Tabebuia spp.

Family:  Bignoniacae

Other Common Names: Amapa(Mexico), Cortez (Honduras, Nicaragua, Costa rica), Guayacan (Panama), Guayacan polvillo (Colombia), Flor Amarillo (Venezuela), Greenheart (Surinam), Madera Negra (Equador), Tahuari (Peru), Ipé (Brazil), Lapacho Negro (Paraguay, Argentina)

Distribution:  Throughout contentinental tropical America and some of the Lesser Antilles.  The tree grows on a variety of sites, from ridge tops to riverbanks and marsh forests.

The Tree: May grow to 140-150 feet in height wtih trunk diameters of 6 feet.  Frequently to heights of 100 feet and diameters of 2 to 3 feet.  Boles are clear to 60 feet and more, with or without buttresses.

General Characteristics: Heartwood olive brown to blackish, often with lighter or darker striping, often covered with a yellow poweder, sharply demarcated from the whitish to yellowish sapwood.  Texture is fine to medium; grain straight to very irregular; rather oily looking; without distinctive odor or taste.

Weight: Basic specific gravity (ovendry weight/green volume) .85 to .97; air-dry density ranges from 66-75 pcf.

Mechanical Properties: First and third sets of data based on the 2-in. standard; second on the 1-in. standard.

Moisture Content (%)
Bending Strength (PSI)
Modulus of Elasticity (1000 PSI)
Maximum Crushing Strength (PSI)
Green (73) 22,650 2,920 10,350
12% 25,360 3,140 13,010
12% (24) 22,500 3,010 14,000
12% (44) 28,000 3,350 N/A

Janka side hardness is 3,060 lb. for green material and 3,680 lb. at 12% moisture content. Forest Products Laboratory toughness average for green and dry material is 404 in.-lb. (5/8-in. specimen).

Drying and Shrinkage: Generally reported to air-dry rapidly with only slight checking and warping.  Kiln schedule T3-C1 is suggested for 4/4 stock.  Shrinkage green to ovendry: radial 6.6%; tangential 8.0%; volumetric 13.2%.  Movement after manufacture is rated as small.

Working Properties: Moderately difficult to work especially with hand tools; has a blunting effect on cutting edges, finishes smoothly except where grain is very roey The fine yellow dust produced in most operations may cause dermatitis in some workers.

Durability: Heartwood is very resistant to attack by decay fungi and termites; not resistant to marine borers.  T. guayacan however, is reported to have good resistance in Panama waters.

Preservation: The wood is reported to be extremely resistant to preservation treatments.

Uses: Decking, siding, railroad cross-ties, heavy construction, tool handles, turnery, industrial flooring, textile mill items, decorative veneers.