Unfinished poplar base outside corner block 8.5 inch tall with groove edge

Vendor:NewMouldings

EWBB83 Base Outside Corner Block 1-3/8" x 1-3/8" x 8-1/2" Unfinished

$20.99

The EWBB83 Base Outside Corner Block offers a solid, unfinished poplar hardwood component designed for use with standard baseboard moldings. Measuring 8-1/2 inches tall by 1-3/8 inches square with a 1/2 inch groove, it fits traditional colonial and ogee style interior trim applications.

  • Unfinished natural poplar hardwood for custom finishing.
  • Designed specifically for outside corners of baseboard or cabinet trim.
  • Measures 8-1/2" tall by 1-3/8" square with groove for molding fit.
  • Supports traditional architectural millwork styles.
  • Sustainably sourced solid wood made in the USA.
Wood material
Wood material: Poplar

Reliable unfinished poplar baseboard corner trim

Key Features

Exact Specifications

Dimensions & Material

Brand or supplier
NewMouldings
Product type
Base Board Corner Blocks
Material
Solid unfinished poplar hardwood sourced sustainably in the USA.
Dimensions/options
Measures 8-1/2 inches tall by 1-3/8 inches square with a 1/2 inch groove to fit standard baseboard molding.
Color/finish
Natural unfinished wood (poplar)

What arrives

One EWBB83 Base Outside Corner Block 1-3/8" x 1-3/8" x 8-1/2" Unfinished in the selected option unless the product page clearly lists a set or kit. Props and styling accessories shown in photos are not included.

Fitting Details

Profile and Compatibility

Install on outside corners of baseboards or cabinets to create a clean, finished look. Use nails or adhesive suitable for hardwood molding.

Designed to Fit Standard Moldings

Best for interior millwork, casing, baseboard, crown, cap, or trim projects where the profile and dimensions match the existing or planned design.

Always follow the manufacturer's care, use, and safety guidance.

Ordering Info

Shipping and Returns

Shipping Details

Shipping rates and estimated delivery times are shown at checkout.

Return Policy

Return requests are accepted within 30 days of delivery. Contact Resin Society first for damaged, defective, incorrect, or missing items and we will coordinate directly with NewMouldings.
Unfinished poplar base outside corner block 8.5 inch tall with groove edge

Quiet detail, strong line

A single poplar block that turns a corner into architecture.

At the baseboard

Where walls meet with intention

Sized to the inch

Corners tell on a room. The smallest mismatch at the base can ripple through every wall, breaking the line you meant to keep. The EWBB83 Base Outside Corner Block sets a clear 1-3/8 inch square by 8-1/2 inch tall datum with a defined groove for standard baseboard—so the cut list follows form, not guesswork.

Order in the trim

Millwork changes the proportion of a room, and this block makes that shift intentional. Unfinished poplar accepts the finish you choose, letting paint, stain, and shadow land cleanly. With a fixed profile and projection, the base reads as one continuous thought around the perimeter.

For the measured eye

Homeowners and finish carpenters aligning baseboard runs who want a consistent outside corner in unfinished poplar.

In practice

Set the EWBB83 at an outside corner to meet standard baseboard into its 1/2 inch groove and carry the profile around the room before finishing to match.
  • Finish carpentry
  • Renovations
  • Cabinet shops
  • Door and wall trim
  • Paint or stain projects
NewMouldings brand cover

Maker Background

About NewMouldings

NewMouldings has spent more than a quarter-century supplying unfinished hardwood mouldings from its Poughkeepsie, NY base. The company focuses on clean, made-in‑USA components — crowns, casings, panel mouldings, cabinet light rails and more — stocked in Cherry, Maple, Poplar, Red Oak, White Oak and Walnut. Pieces arrive unfinished so makers and woodworkers can stain, paint or adapt them for furniture, trim work, shelving and mixed-media projects. NewMouldings emphasizes dimensional stability and dependable profiles that make finishing predictable, whether you’re restoring a period interior or building a one-off piece. If you need reliable, ready-to-ship trim that’s built to take a custom finish, these mouldings are a practical starting point.
Explore NewMouldings
93trees planted to date

Your order gives back

When you buy from Resin Society, you help plant trees through our reforestation partnership. It is a small way your order supports the materials, homes, and landscapes makers care about.

Common Questions

FAQs

What are the exact dimensions?
It measures 8-1/2 inches tall and 1-3/8 inches square, with a 1/2 inch groove designed to fit standard baseboard molding.
What wood species is it?
Solid unfinished poplar hardwood, sustainably sourced in the USA.
Is the surface prefinished?
No, it’s natural unfinished poplar ready for the finish you choose.
Where is it used on a project?
At outside corners of baseboard runs to maintain a consistent profile and projection around the room.
Does it match standard baseboard profiles?
It includes a 1/2 inch groove to receive standard baseboard molding, creating a clean transition at the corner.