Tile Backer

Woodland Building Supply in Philadelphia stocks permabase, hardibacker and dens-shield products. Each product has benefits for use.

• Permabase - 3x5x1/2"
• Hardibacker - 3x5x1/4"
• Dens-Shield - 4x5x1/2" & 4x8x1/2"

Permabase by National Gypsum ,
is a rigid substrate made of Portland cement, aggregate and glass mesh that provides an exceptionally hard, durable surface that is able to withstand prolonged exposure to moisture.PermaBase is ideally suited as an underlayment or backing surface for tub and shower surrounds, countertops, flooring and a variety of other interior and exterior applications.
Hardibacker by James Hardie,
dibacker® Backerboard is a unique cement based, water resistant substrate for tiling that can be used on walls, floors and countertops. Particularly suitable for use around baths, showers and in kitchens, it will keep your tiles just where you want them. Stuck hard to the surface. Tried and tested in millions of homes worldwide. It's easy to cut and install.
DensShield by Georgia Pacific,
The 1/2" DensShield tile backer with a high-density core recently passed the stringent Robinson Floor Test for use in residential and light commercial applications.* With a compression rating greater than 1,500 psi, the 1/2" panel allows mechanical attachment to the floor system not only with screws or nails but also with labor-saving staples, making installation faster than ever.