AT1458-48.5 Moulded Half-Round HDP Urethane Arch Trim - 49" Opening
- SKU:
- AT1458-48.5
- MPN:
- AT1458-48.5
- Condition:
- New
- Availability:
- Typically Ships within 2-3 weeks from Order Date
- Width:
- 48.50 (in)
- Height:
- 5.50 (in)
- Depth:
- 2.00 (in)
- Shipping:
- $129.00 (Fixed Shipping Cost)
Description
AT1458-48.5 Moulded Half-Round Arch Trim — 49" Opening
Finish a half-round window or arched doorway with Spectis AT1458-48.5 moulded arch trim. This primed high density polyurethane (HDP) arch carries the MD1458 profile, with a 5½" trim width and a 1⅞" projection. Pair it with matching MD1458 straight moulding to carry the same profile down the sides of the opening.
49" Inside Diameter
Designed for a 49" half-round opening (24½" inside radius). Confirm the opening shape and dimensions against the product drawing.
Moulded Profile
5½" face width and 1⅞" projection, matching MD1458 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 49" dimension is the inside opening diameter, measured between the inner edges at the base; the Spectis drawing gives the inside radius as 2′-0½" (24½"). The trim is 5½" wide around the curve. Overall dimensions are 60" wide × 30" high × 1⅞" projection. The 5½" trim width is not the overall arch height.
AT1458-48.5 at a Glance
Style: Moulded half-round archInside diameter: 49"
Inside radius: 24½"
Trim face width: 5½"
Overall width / height: 60" / 30"
Projection: 1â…ž"
Material: High density polyurethane (HDP)
Finish: Primed, ready to paint
Matching trim: MD1458
See the Moulding Profile
The profile-detail panel beneath the arch shows the matching MD1458 straight moulding and its end profile, drawn from the Spectis MD1458 drawing: a rounded top bead over a cove, stepped flats and a small bead at the base. The matching straight moulding continues that profile down the sides of your opening.
Complete the Arch Surround
The Spectis catalog lists MD1458 as the matching moulding for AT1458-48.5. Straight trim continues the arch profile down the sides of the opening. Matching trim is sold separately. No keystone is listed for this arch. Check the component drawings and installation arrangement before ordering.
Matching Straight Trim
MD1458 Moulding1⅞" projection × 5½" face width × 144" length. Matches this arch’s moulded profile and trim width.
Shop Matching Trim ›Other Arch Sizes and Profiles
AT1458-48.5 is the only Spectis arch made for a 49" 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 AT1458-48.5 Drawing (PDF) ›
Spectis Catalog
See arch profiles and matching component information on catalog page 122.
Open Spectis Catalog ›
Works with AT1458-48.5 — complete the look
Spectis parts made to go with this item, from the Spectis catalog and product drawings.
Each part is sold separately. Confirm profiles and dimensions against the drawings before ordering.
Questions
Which straight trim matches this arch?
MD1458 moulding matches the 1⅞-inch projection and 5½-inch face width of AT1458-48.5.
Is there a matching keystone?
The Spectis catalog does not list a keystone for AT1458-48.5. MD1458 is the listed matching moulding.
Does 49 inches mean the overall width?
No. 49 inches is the inside opening diameter. The overall width is 60 inches: the 5½-inch trim on both sides plus the opening. The arch is 30 inches high with a 1⅞-inch projection.
Is the matching trim included?
No. This listing is for the arch trim. MD1458 straight moulding is 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.
