Hardwood Floors October/November 2025

TECHNICAL PUBLICATION RESOURCES

T ips

For additional information, check out the NWFA's Technical Guidelines at NWFA.ORG/TECHNICAL- GUIDELINES/.

DIMENSIONAL CHANGE COEFFICIENT (for common flooring species)

SPECIES

C T

SPECIES

C T

Mesquite

0.00129 0.00158 0.00162 0.00180 0.00186 0.00201 0.00201 0.00212 0.00212 0.00212 0.00234 0.00238 0.00238 0.00248 0.00252 0.00259 0.00263 0.00267 0.00274 0.00274 0.00274 0.00280

Jatoba

0.00300 0.00312 0.00315 0.00338 0.00350 0.00353 0.00365 0.00369 0.00396

Merbau

Pau Marfim*

Australian Cypress

Hickory, Pecan

Padauk

Birch

Teak

Oak, Red (Southern)

Mahogany, African

Maple, Hard

Wengé

Oak, White

Cumaru*

Oak, Red (Northern)

Pine, Eastern White

Jarrah

Purpleheart

Hickory, True

0.00411

Chestnut

Beech

0.00431

Mahogany, Honduran

Tigerwood/African Walnut

Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable

Mahogany, Santos

Amendoim

Cherry

Bubinga Kempas

Maple, Soft

Sapele*

Acacia, Short Leaf

Pine, Southern Yellow

Tiete Rosewood

Douglas-fir

Patagonian Rosewood

Andiroba

Goncalo Alves

Ash

Acacia, Big Leaf

Walnut

Koa, Acacia

Ipé*

NOTE: * The estimated DCC was derived using a green to oven-dry tangential shrinkage values from Wood Handbook and other resources, assuming a 30 percent FSP. It is possible, however, that FSP may be less than 30 percent with some of these species, affecting the values given.

Source: NWFA Wood Species A200 (revised 2023).

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