4-inch

Sub-slab or sub-membrane depressurization system Consists of the following components: •4-inch layer of clean, coarse gravel beneath the bottom concrete slab in a basement - allows soil gas to move freely beneath the home •Polyethylene sheeting placed on top of the gravel layer - helps prevent soil gas from entering the home and keeps the concrete from entering the gravel layer when placed •A 3 - or 4-inch PVC or other gas-tight pipe running from the gravel layer through the home and roof

Recently Uploaded Slideshows 2009

Divide the dough in half, firmly press each half into a ball, and wrap tightly in plastic wrap, pressing down to flatten each ball into a 4-inch disk.

Alice Waters's Rhubarb Galette 2011

Dogs with long backs, like dachshunds, are allowed to jump the 4-inch hurdle even if they are 8 inches tall.

Agility Contests Go to the Dogs as Tiny Breeds Star in 'Petit Prix' Clare Ansberry 2012

Forcing teammates to deliver cross after cross, he repeatedly attempted to throw his 6-foot, 4-inch, 203-pound frame into the air for a bicycle kick.

Import Fuels Playoff Push For Red Bulls Joshua Robinson 2011

The shortest dogs, typically Chihuahuas and Yorkshires, face off in the 4-inch category.

Agility Contests Go to the Dogs as Tiny Breeds Star in 'Petit Prix' Clare Ansberry 2012

I'm talking about traditional tongue-and-groove hardwood that's 3/4-inch thick, not engineered hardwood flooring.

Ask the Builder: Hardwood floors best left to the professionals 2011

The camera seemed to start up faster than those on other smart phones I've used, and I could scroll through applications and contacts on its 4-inch screen with ease.

REVIEW: Motorola Atrix Is A Smartphone--And A Laptop AP 2011

The thing's got 15.4-inch front Brembo brakes with radial-mounted six-pot monoblock calipers.

Nissan GT-R: A 'Halo Car' With Devil's Horns Dan Neil 2011

The camera seemed to start up faster than those on other smart phones I've used, and I could scroll through applications and contacts on its 4-inch screen with ease.

REVIEW: Motorola Atrix Is A Smartphone--And A Laptop AP 2011

Form into small 4-inch patties; approximately 1-inch thick.

Recipe for Love Shamara Ray 2011