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Custom Fiberglass Access Door

SKU: SPACC-CUST-XS-4-J
$853.00

Get the right size

Measure your door with our step-by-step tool. It checks each reading and tells you exactly which door to order.

Measure your door Door System Calculator Explore what can fit in my rough opening

Still unsure? With Guaranteed Fit, a door expert confirms your size before you order. How it works

Size: Slab up to 48" (ships ground)
Jamb Depth: 4 9/16"
Frame: 4-Sided Frame

Configure

Build your access door

Any size to the nearest 1/4", with your frame, hinges and lock prep. The drawing and price update as you go.

Made to order: see the ship date below

Estimated delivery

Ships in about 2 weeks, then 2 to 4 business days with ground shipping.

How we estimate

Most in-stock items that need no shop work leave our warehouse the same or next business day. Ordering by 12 pm Eastern, Monday to Friday, gives yours the best chance of shipping the same day.

Shop work starts once everything is in stock: trimming, cutting or prep takes 1 business day, finishing (priming, painting or staining) 1 to 3, and assembly, such as a prehung door system, 2 to 5. Out-of-stock items without a restock date usually ship in about 2 weeks, plus any shop work.

Ground parcels take 2 to 4 business days. Doors, sidelites and other large items go by freight: Priority Freight takes 2 to 5 business days and economy freight 7 to 15; you choose at checkout. Weekends and carrier holidays aren't counted. These are estimates, not guarantees.

Shipping questions

20-year limited warranty. Details

  • Made to your order: not eligible for return or cancellation. Return policy
  • Questions about fit? Call or text a door expert at 513-871-8907.

Custom Prehung Access Door, made to order

Our insulated fiberglass access door, built to the size you need. Use it for crawl spaces, attics, utility rooms, water heater and HVAC closets, and storage: anywhere a standard door won't fit and a thin panel won't keep the heat out.

Choose the unit size to the nearest 1/4", then the frame, jamb depth, hinges and lock prep. The drawing and price update as you go, and you can print a spec sheet of your door.

Specifications:

  • 1-3/4" thick door with smooth fiberglass skins and a polyurethane foam core
  • Composite jambs, 4-9/16" (2x4 walls) or 6-9/16" (2x6 walls) deep
  • 4-sided frame with white foam weatherstrip (mounts in or out, left or right), or 3-sided frame with an outswing bumper threshold in aluminum mill or bronze (adds 1/4" to the height)
  • Two 4" hinges in satin nickel, stainless steel or flat black: the top one 6-1/2" from the top of the door, the bottom one 6-1/2" from the bottom
  • No bore, single bore or double bore (5-1/2" apart), 2-1/8" holes centered on the height of the door; lock not included
  • Primed and ready for paint

Measurements:

  • Unit sizes 19-1/2" to 37-1/2" wide and 29-1/2" to 80-3/4" tall (81" with a threshold), in 1/4" steps
  • Door slab: 1-3/4" narrower and shorter than the unit (2" shorter with a threshold)
  • Rough opening: 1/2" larger than the unit each way, for shimming

Made to order:

  • Typically ships in 3 to 6 weeks
  • Custom sizes can't be cancelled or returned once ordered
  • Ships ground when the unit is under 50" tall (under 40" with a threshold); larger units ship freight on a pallet
  • Need a standard size fast? See our in-stock access doors
Any Size, to the 1/4"

Built to your opening: units from 19-1/2" to 37-1/2" wide and 29-1/2" to 80-3/4" tall, in 1/4" steps. The door slab is 1-3/4" narrower and shorter than the unit.

Energy Efficient

Exterior-grade smooth fiberglass skins over a polyurethane foam core, hung in composite jambs that won't rot. 4-sided frames seal on all four sides with white foam weatherstrip.

Your Frame, Your Hinges

A 4-sided frame mounts any way, in or out, left or right. Or choose an outswing bumper threshold in aluminum mill or bronze. Two hinges in satin nickel, stainless steel or flat black.

Lock Prep Your Way

No bore, a single 2-1/8" bore, or a double bore 5-1/2" apart for a handle and deadbolt, centered top to bottom, at a 2-3/8", 2" or 2-3/4" backset.

Questions buyers ask

Will a 35-3/4" x 79" slab fit my 36" x 80" door frame?

Yes. 36" x 80" is what the door is called; the slab itself measures 35-3/4" x 79", which leaves the gaps a door needs to swing and seal. Measure your old slab to be sure, or send us your measurements and we confirm the fit before we build.

Slab only or complete door system: which do I need?

A slab is just the door, for a frame that is square and in good shape. A complete door system is the door hung in a new frame with the threshold, hinges and weatherstrip: choose it if the frame is rotted or out of square, or if you are changing the opening. The Door System Calculator turns a rough opening into the right size.

Which way does my door open?

Stand inside the home, facing the door. If it swings toward you it is an inswing door, and the knob side names the hand: knob on your left is left hand inswing. For an outswing door, use the hinge side instead.

Can I add my own glass later?

Choose a cut-out option and we cut the opening in our shop for the matching glass kit. Glass kits are listed by the outside size of their plastic frame, which is 1" larger than the cut-out (a 23" x 37" cut takes a 24" x 38" kit), and a shaped cut (round top, arch or oval) needs a kit of the same shape.

When will it ship?

In-stock items that need no shop work ship the same or next business day. Shop work starts once everything is in stock: 1 business day for prep, 1 to 3 for finishing, and 2 to 5 to assemble a complete door system. Doors go by freight: Priority Freight takes 2 to 5 business days, economy freight 7 to 15; you choose at checkout. The estimate under the price updates for the size and options you pick.

Get it right the first time

Questions before you order?