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From walls to rooftops — Karp's comprehensive product range covers every access point in commercial and residential construction.
From commercial to industrial needs, our access doors deliver strength, safety, and precision.
Karp believes we all share the responsibility for our environment. Our shipping cartons are made of recycled corrugate, catalogs and unused printed material are donated yearly to a community recycling facility, and Karp's new paint system is approved by the EPA.
Karp's customized electrostatic powder paint system provides customers with a high quality, durable finish, with a much higher resistance to corrosion. Karp's powder contains no damaging solvents and therefore no toxic fumes are emitted into the atmosphere.
Trusted by contractors, architects and builders across the United States.
Lost the keys to two Attic doors on our 7 year old house. Jonathan Karp graciously sent replacement locks & keys with no questions asked. Very pleased with their customer service. Thanks . . .
I had an excellent experience working with Karp Associates, and I especially want to recognize Jonathan Karp for his outstanding customer service. Jonathan was professional, responsive, and genuinely attentive throughout the entire process.
Technical guidance, product selection tips and installation insights for architects, contractors and building professionals.
Floor hatch and floor door load ratings explained: 300 psf vs H20, sizes from 12 x 12 to 72 x 48, hinged or removable, watertight and spring...
How to choose a drywall ceiling access panel: flush, recessed, all-drywall or concealed hatch, plus grid, plaster and fire rated ceilings by...
Duct access door sizes from 6 x 6 to 24 x 24, the 1 1/4 inch opening rule, hinged vs removable, and where to put the door at dampers and coi...
