AT1610-71.5 Moulded Half-Round HDP Urethane Arch Trim - 71 1/2" Opening
- SKU:
- AT1610-71.5
- MPN:
- AT1610-71.5
- Condition:
- New
- Availability:
- Typically Ships within 2-3 weeks from Order Date
- Width:
- 71.50 (in)
- Height:
- 3.50 (in)
- Depth:
- 1.50 (in)
- Shipping:
- $129.00 (Fixed Shipping Cost)
Description
AT1610-71.5 Moulded Half-Round Arch Trim — 71½" Opening
Finish a half-round window or arched doorway with Spectis AT1610-71.5 moulded arch trim. This primed high density polyurethane (HDP) arch carries the MD1610 profile, with a 3½" trim width and a 1½" projection. Pair it with matching MD1610 straight moulding and an optional K2743 keystone for a coordinated surround.
71½" Inside Diameter
Designed for a 71½" half-round opening (35¾" inside radius). Confirm the opening shape and dimensions against the product drawing.
Moulded Profile
3½" face width and 1½" projection, matching MD1610 moulding.
Primed HDP Urethane
Decorative polyurethane arch trim supplied primed and ready for paint.
Made to Order
Confirm all dimensions before ordering. This made-to-order product is nonreturnable.

How to Read the Size
The 71½" dimension is the inside opening diameter (5′-11½" on the Spectis drawing), measured between the inner edges at the base, for a 35¾" inside radius. The trim is 3½" wide around the curve. Overall dimensions are 78½" wide (6′-6½") × 39" high × 1½" projection. The 3½" trim width is not the overall arch height.
AT1610-71.5 at a Glance
Style: Moulded half-round archInside diameter: 71½"
Inside radius: 35¾"
Trim face width: 3½"
Overall width / height: 78½" / 39"
Projection: 1½"
Material: High density polyurethane (HDP)
Finish: Primed, ready to paint
Matching trim: MD1610
Matching keystone: K2743
See the Moulding Profile
The profile-detail panel beneath the arch shows the matching MD1610 straight moulding and its end profile, drawn from the Spectis MD1610 drawing: a flat top band over a deep ogee curve, stepping down to a narrow flat at the inner edge. The matching straight moulding continues that profile down the sides of your opening.
Complete the Arch Surround
The Spectis catalog lists MD1610 as the matching moulding for AT1610-71.5, and K2743 as the keystone for MD1610. Straight trim continues the arch profile down the sides of the opening; the optional keystone adds a center accent. Matching trim and keystones are sold separately. Check the component drawings and installation arrangement before ordering.
Matching Straight Trim
MD1610 Moulding1½" projection × 3½" face width × 144" length. Matches this arch’s moulded profile and trim width.
Shop Matching Trim ›Matching Keystone
K2743 Urethane KeystoneThe catalog-listed keystone for MD1610 (4¼" projection × 7" height × 6" width). Use it as an optional center detail for a coordinated surround.
Shop K2743 Keystone ›Other Arch Sizes and Profiles
AT1610-71.5 is the only Spectis arch made for a 71½" opening. For other openings, trim widths and profiles, browse the full arch trim range.
Installation & Finish
Dry-fit the arch and matching components before fastening. Follow Spectis installation instructions, including the requirement to use Spectis adhesive on all bedding and butt joints. Secure the trim as directed, finish the joints and fastener holes, and paint after installation. This arch is decorative and is not a structural support.
How to Install Arch TrimStep-by-step guide, size chart and matching trimRead the Guide ›Shipping
The long side is over 48 inches, so it ships LTL freight, the same as a long header.
A verified commercial address a 52-foot trailer can pull into. A house with a business in it does not qualify.
If the carrier calls the address a residence, a $275 fee is added, and you get a confirmation letter so you can correct the address or pay the extra freight.
The order goes to the Spectis plant in Manitoba the same day. Shipping from Canada typically takes two to three weeks.
Drawings & Resources
Product Drawing
Review the exact opening, overall dimensions and profile before ordering.
View AT1610-71.5 Drawing (PDF) ›
Spectis Catalog
See arch profiles and matching component information on catalog page 123.
Open Spectis Catalog ›
Questions
Which straight trim matches this arch?
MD1610 moulding matches the 1½-inch projection and 3½-inch face width of AT1610-71.5.
Which keystone goes with AT1610-71.5?
The Spectis catalog lists K2743 as the keystone for MD1610, the matching moulding for this arch. It is sold separately.
Does 71½ inches mean the overall width?
No. 71½ inches is the inside opening diameter. The overall width is 78½ inches: the 3½-inch trim on both sides plus the opening. The arch is 39 inches high with a 1½-inch projection.
Are the matching trim and keystone included?
No. This listing is for the arch trim. Matching straight moulding and the optional keystone are purchased separately.
Can I return this arch?
This arch is made to order and is nonreturnable. Confirm the drawing, opening size and profile before ordering.
Not sure this arch trim fits the opening? Weekdays, 8 a.m. to 6 p.m. Eastern.
800-986-1250 sales@spectis.usBuilders, designers, and customers: if Spectis products or the installation steps are modified, you agree to indemnify, defend, and hold harmless Veritas Products LLC, veritasproducts.com, and spectis.us from any claimed loss or damage, regardless of other instructions.