Jamb Extension Type 8 (Bianco Noble / Gray Oak / Shambor / Snow white)

JAMB EXTENSION (width 2 1/8") - QTY: 3

A jamb extension does precisely what the name suggests – it's a board that fills the depth of the wall space from the inside face of the door frame to the face of the wall and thus widens the frame. So if the wall thickness is greater than the standard jamb width, extensions must be used.
Jamb extensions are typically made of MDF and create a clean edge for the casing trim to be nailed to or inserted if this is a telescopic L-casing.
With the help of extensions our frames can cover walls 4 7/8” to 6 7/8” thick.

Shipping & Order Confirmations

Order Confirmation
Once your order is placed, you’ll receive an email confirmation acknowledging receipt. This email will include the estimated production timeline (approximately 21 business days) and your estimated delivery date (ETA).

Special order doors are 14-18 weeks delivery

A second email will be sent once your order has shipped. If your order ships in multiple parts, you will receive separate email notifications for each shipment.
Tip: Be sure to save these emails and invoices for your records.

Shipping Rates
Our standard ground shipping is handled via common carriers and includes:

Residential delivery

Delivery appointment scheduling

Liftgate service

Pallet jack service

Starting at: $150
Production Lead Time: Approx. 14 business days
Shipping prices are subject to change without notice. We do not charge additional fees for crating.

Shipping Information
Large Items: Shipped via LTL (Less Than Truckload) freight – curbside delivery only

Smaller Items: Shipped via standard carriers

Typical Transit Times:
East Coast: 2–4 business days
West Coast: 5–7 business days

Note: Dealers may use their own freight company if preferred. For shipments outside the continental U.S., please contact Door Design Lab directly.

Will Call Service (Local Pickup)

Prefer to pick up your order yourself?
You're welcome to! Just give us a call ahead of time to schedule your warehouse pickup.