SAME DAY & EXPEDITED SHIPPING AVAILABLE
Floor Concealed Closers
The BTS80 Series of floor-concealed door closers offer adaptability to almost any installation. The closer's compact body permits its use where a larger closer would be prohibitive. Versatility allows installation in thin slab concrete subfloor construction. A wide selection of interchangeable spindles makes the BTS80 suitable for virtually any floor covering or threshold application.
Door closer ANSI/BHMA Grade 1 certified.
Frequently Asked Questions
What is a floor-concealed closer?
A floor-concealed closer is a door control device hidden beneath the floor, aligned with the door pivot. Unlike surface closers, it is nearly invisible, making it ideal for high-end architectural or glass installations. At National Lock Supply, we provide Grade 1 floor closers built for heavy-duty applications.
How do they compare to surface closers?
Surface closers are visible on the door or frame, while floor closers are completely hidden, providing a clean look. However, floor closers require more complex installation since the floor must be cut to accommodate the mechanism.
What door types use floor closers?
They are common on frameless glass doors, aluminum storefront entrances, pivot doors, and heavy commercial doors where both aesthetics and durability matter.
Are they adjustable?
Yes. Most models allow independent adjustment of closing speed, backcheck, delayed action, and hold-open features, providing precise door control.
Are they ADA compliant?
Yes, when adjusted correctly to reduce opening resistance. Their smooth pivoting action also reduces strain compared to some hinge-mounted closers.
Are floor closers UL rated?
Yes. Many are UL-listed for use on fire-rated doors, ensuring compliance with safety codes.
Where are they installed?
In retail stores, corporate offices, hotels, and lobbies, particularly where design aesthetics are important.
What finishes are visible?
Only the cover plate is visible, usually in Satin Stainless, Aluminum, or Dark Bronze, blending with floor hardware.
Do they require professional installation?
Yes. Installation requires floor cutting, pivot alignment, and leveling, making it more complex than surface-mounted closers.
Why buy floor closers from National Lock Supply?
We stock UL-listed Grade 1 floor-concealed closers engineered for long-term durability, with expert guidance for selecting the right closer for heavy-use entrances.