The best match for a 1.5-inch quarter-round profile in this selection is 80/20’s 15 Series aluminum extrusion, offered in several lengths for modular-frame and rail projects. It is not conventional wood floor molding. For home finish work, the listed flexible trims are smaller, 0.5-inch-profile alternatives rather than exact 1.5-inch replacements. Compare the products below by intended use, profile, and length before choosing.
| Product | Best suited for | Key distinction |
|---|---|---|
| 80/20 36-inch extrusion | Short modular builds | 1.5 × 1.5-inch aluminum profile |
| 80/20 48-inch extrusion | Medium-length rails | Same profile, longer stock |
| 80/20 60-inch extrusion | Longer frame or guide projects | Same profile, longest listed length |
| 80/20 plastic end caps | Finishing compatible extrusion ends | Accessory, not molding |
| MYFAMIREA flexible trim | Small household edge finishing | 0.5 × 0.5-inch PVC trim |
80/20 36-Inch T-Slotted Quarter-Round Extrusion
This 80/20 15 Series extrusion measures 1.5 by 1.5 inches and is 36 inches long. It is a structural, modular aluminum component with two open T-slots, not a decorative floor trim strip. The slots accept 1.5-inch-based joining plates, brackets, and other T-slot accessories.
Best for: DIY builders who need a relatively short section for a linear rail, frame, or other modular assembly. The 6063-T6 aluminum and clear anodized finish suit projects that call for a metal extrusion, while the listed clean cuts and deburred ends support straightforward assembly.
Why it was selected: It is an exact 1.5 × 1.5-inch option in the supplied product list, with the shortest of the three listed lengths.
Keep in mind: Its T-slots and aluminum construction make it different from ordinary quarter-round molding used to cover a floor-to-wall gap. Choose another type of trim if you need a paintable or wood-look interior finish.
80/20 48-Inch T-Slotted Quarter-Round Extrusion
This 48-inch 80/20 extrusion shares the same 15 Series, 1.5 × 1.5-inch profile as the shorter option. It has two open T-slots for compatible joining plates, brackets, and accessories. The listed material is 6063-T6 aluminum with a clear anodized finish.
Best for: A builder who needs more continuous length than the 36-inch version but does not need the longest listed piece. It can be considered for a linear rail, CNC guide rail, or other modular construction application described in the product features.
Why it was selected: It offers a useful middle length while retaining the same profile and slot-based connection approach as the other 80/20 options. Comparing length first helps avoid choosing a piece that is unnecessarily short or long for the planned layout.
Keep in mind: Confirm that the 1.5-inch dimensions and two-slot configuration suit the project’s connection hardware. This is aluminum extrusion, not a flexible, adhesive-backed household molding.
80/20 60-Inch T-Slotted Quarter-Round Extrusion
The 60-inch version is the longest listed 80/20 extrusion in this group. It uses the same 15 Series 1.5 × 1.5-inch profile, two open T-slots, and 6063-T6 aluminum with an anodized finish. The product details also list deburred ends, clean cuts, and tight cut tolerances.
Best for: Projects that require a longer uninterrupted extrusion, such as a linear rail or a larger modular assembly. Choose this length over the 36- or 48-inch versions when the planned span calls for more material and the full length is practical to handle.
Why it was selected: It provides the greatest listed length among the matching aluminum profiles, giving buyers a direct option for longer builds without changing the profile family.
Keep in mind: A longer piece may not be the right choice for a compact project or one that requires a different cut length. The listing does not provide details about project-specific compatibility beyond its 15 Series slots and accessories.
80/20 1.5-Inch Plastic Extrusion End Caps
These red ABS plastic caps are accessories for compatible 1.5 × 1.5-inch 80/20 quarter-round aluminum bars. The package includes five caps and push-in fasteners designed to pin into the end cap’s center bores. The listing says the fasteners can be pushed in by hand.
Best for: Buyers who already have compatible extrusion and want to finish its exposed ends. The product features cite uses such as helping prevent scuffs on floors from extrusion used in table legs or racks.
Why it was selected: It complements the 1.5-inch extrusion options and addresses a separate finishing need that a length of raw extrusion does not solve.
Keep in mind: These are end caps, not a replacement for quarter-round molding or a length of aluminum profile. The product is red, so check whether that color fits the appearance of the finished project.
MYFAMIREA Flexible 0.5-Inch Quarter-Round Trim
This white flexible molding is made from PVC and measures 0.5 × 0.5 inches. It has double-sided adhesive backing and is designed for use along edges and corners, including in bathrooms, kitchens, and around countertops. The listed features describe it as water resistant, wipe-clean, and bendable.
Best for: Homeowners who want a small, flexible, peel-and-stick trim for a curved edge or corner. It is a more relevant household-finish option than aluminum extrusion when the goal is to cover a minor gap or create a neat edge.
Why it was selected: It is the closest conventional home-trim alternative among the supplied products, with flexible PVC construction and adhesive installation.
Keep in mind: Its 0.5-inch dimensions do not match a 1.5-inch profile. The features recommend adhesive application, so prepare the surface and verify that the intended installation area is suitable for the backing.
Buying Guide: How to Choose 1.5-Inch Quarter Round
Do you mean aluminum extrusion or household trim?
Start by clarifying what “1.5 inch quarter round” means for your project. In this product selection, the exact 1.5 × 1.5-inch options are T-slotted aluminum extrusions. They are intended for modular structures, rails, and related builds, not for concealing a standard gap between flooring and a wall.
For household finishing, compare the trim’s actual profile dimensions rather than relying on the phrase “quarter round.” The listed flexible products have smaller profiles: MYFAMIREA measures 0.5 × 0.5 inches, while the esgwork roll is described as having a 0.5-inch radius. Neither is specified as a 1.5-inch household molding.
Which extrusion length should you choose?
Choose length based on the required span and the available working space. The listed 80/20 pieces are 36, 48, and 60 inches long. They share the same 15 Series profile and T-slot features, so the main stated difference among these choices is length. Measure the intended run and account for any cuts or end finishing before selecting.
- 36 inches: Consider for a shorter section or compact assembly.
- 48 inches: Consider when the 36-inch option is too short but the longest piece is not needed.
- 60 inches: Consider for the longest continuous span in this selection.
What should you check before choosing T-slot extrusion?
Confirm that the project calls for 15 Series hardware and a 1.5 × 1.5-inch profile. The listings describe two open T-slots for joining plates, brackets, and accessories based on 1.5-inch dimensions. Check the planned connections and layout before ordering; a matching outside dimension alone does not establish that every component will fit.
Also consider whether the anodized aluminum appearance and structural use are appropriate. If the project calls for a flexible edge cover, adhesive installation, or a traditional decorative finish, select a molding product instead of extrusion.
When is peel-and-stick trim a better choice?
Flexible adhesive-backed trim may be more convenient for small edges, curved corners, or surfaces where a bendable strip is useful. The MYFAMIREA trim is a 39-inch PVC piece with a 0.5 × 0.5-inch profile. The esgwork option is a 40-foot rubber trim roll with a stated 0.5-inch radius. Their materials and dimensions differ, so compare the specified shape and length with the gap to be covered.
Adhesive products require suitable surface preparation. The esgwork feature list specifically says to clean the surface, cut the trim, peel the backing, and press it firmly onto smooth surfaces. Avoid assuming that a peel-and-stick product will adhere well to every texture or condition.
Do you need end caps?
End caps are a finishing accessory for an extrusion, not a substitute for the extrusion itself. The listed 80/20 caps are made of ABS plastic and include push-in fasteners for compatible 1.5 × 1.5-inch bars. Verify the profile and center-bore arrangement before choosing them, and consider the red color when planning the appearance of the assembly.
Frequently Asked Questions
Is a 1.5-inch quarter-round extrusion the same as floor quarter round?
No. The 80/20 products are 1.5 × 1.5-inch T-slotted aluminum extrusions for modular projects. They are not conventional floor molding intended to cover the joint between a wall and floor.
Which listed 80/20 product is the longest?
The 80/20 extrusion in this selection is 60 inches long. The other listed lengths are 48 and 36 inches.
Do the flexible trim options measure 1.5 inches?
No. The MYFAMIREA trim is listed as 0.5 × 0.5 inches, and the esgwork roll is described with a 0.5-inch radius. These are smaller alternatives, not exact 1.5-inch-profile matches.
Can the 80/20 end caps be used as quarter-round trim?
No. They are plastic end caps for compatible 1.5 × 1.5-inch 80/20 extrusion. They finish the ends of bars rather than cover a long floor or wall edge.
What should I measure before buying quarter round?
Measure the profile or gap that must be covered, the total run length, and any corners or curves. For extrusion, also verify the required 15 Series T-slot configuration and accessory fit. For adhesive trim, check that its dimensions and backing suit the surface.
