Finding the right double strut post base helps secure 1-5/8″ channel framing to floors or walls with stability and corrosion resistance. This guide highlights top options suitable for commercial and residential projects, focusing on durability, ease of installation, and load handling. The featured products are best for contractors, DIYers, and builders working with 1-5/8″ strut systems. Below is a quick summary table to compare core details and intended use.
| Product | ||
|---|---|---|
| Low-carbon steel with electrogalvanizing for rust resistance | ||
| Four mounting holes; galvanized steel for durability | ||
| Eight pieces, robust galvanized steel; comprehensive sizing | ||
| Square base with four mounting holes for tilt resistance | ||
| Six-by-six base with four corner mounting holes |
Note: Each product is designed to fit standard 1-5/8″ strut channels and offers varying numbers of bases per pack to match project scale. Read each section for specifics on best use cases, installation notes, and potential limitations.
OTTFF 4 Pack 2 Slot Post Base
Best for lightweight installations where a simple floor mount is required. Each base supports 1-5/8″ square strut channels with a compact 6″ x 2-1/4″ footprint and a 3-1/2″ height. The load capacity is around 220 lbs per base, which makes them suitable for relatively light-duty framing projects. The electrogalvanized finish offers corrosion resistance for indoor or sheltered outdoor use.
Who it’s best for: small to medium DIYers and professionals working on light-to-moderate load mounts. Why chosen: straightforward installation, standard sizing, and good rust protection. Caution: avoid extreme outdoor exposure without additional protective finishes; check every anchor point for tightness after initial load testing.
MONTE ALEXANDRIA Post Base for Double Channel
Designed for double-channel strut systems, this base emphasizes heavy-duty performance. It features four floor mounting holes to secure a double 1-5/8″ channel, with galvanized steel for high resistance to corrosion. The product is well-suited for commercial and residential projects demanding robust anchorage and long service life.
Who it’s best for: installers needing a reliable, secure base for double-channel configurations. Why chosen: strong mounting footprint and durable galvanization. Caution: ensure floor or wall substrate can handle the mounting pattern and bolt size; verify clearance for channel alignment before mounting.
Blulu 4 Pcs Strut U Post Base (4 Pcs)
This set includes four U-post bases designed for 1-5/8″ single strut channels, with a base around 6″ x 2-3/8″ and a post roughly 1-1/2″ x 1-3/4″. The thickness is about 0.15″, and each base has a load capacity near 220 lbs. Made of galvanized steel, these bases resist rust and are suitable for long-term use in varied environments.
Who it’s best for: multi-project builders seeking multiple bases at once and good corrosion resistance. Why chosen: generous quantity plus sturdy build. Caution: minor manual measurement differences may occur; confirm hole sizes align with your anchor bolts before installation.
Blulu 8 Pcs Strut U Post Base, 2 Slot
This list provides eight U-post bases, compatible with 1-5/8″ single strut channels. Base dimensions are similar to the smaller Blulu set, with a robust 0.15″ thickness and approximately 6″ x 2-3/8″ base. The package is ideal for larger projects requiring quick, consistent mounting across multiple points.
Who it’s best for: contractors or teams handling multiple mounting points simultaneously. Why chosen: higher quantity for efficiency; corrosion protection is maintained by galvanization. Caution: confirm exact slot sizes and bolt diameters match your hardware before ordering in bulk.
4 Pack Post Base Channel (4 Hole)
Four-hole post base channels, 6″ square, designed for all 1-5/8″ strut channels with a side orientation option. The heavy-duty 1/4″ thick electro-galvanized steel provides corrosion resistance, ideal for structural mounting and flexible orientation. Four mounting holes are spaced to a 3-1/2″ pattern, with distinct side-channel hole options for adaptation.
Who it’s best for: users needing versatile orientation and reliable anchorage in both floor and wall mounting. Why chosen: balanced dimensions and robust steel. Caution: side-orientation holes may not align perfectly with every existing channel; verify alignment prior to drilling.
Skelang 4 Pcs Strut Post Base
The Skelang set offers four 6″ x 6″ base bases for mounting a single strut channel with four holes for secure installation. The base plate is about 5.9″ x 5.9″ with mounting holes around 0.55″ and channel holes at about 0.51″ diameter. This design emphasizes tilt resistance and straightforward anchoring to concrete, wood, or similar substrates.
Who it’s best for: projects requiring stable, square mounting with reliable resistance to tilting. Why chosen: compact square base with multiple holes for even load distribution. Caution: ensure the substrate is clean and flat to prevent uneven seating of the base.
JSteelKeen 8 Pack Strut Post Base
JSteelKeen offers a practical 8-pack solution featuring a 6″ x 6″ square base with four pre-drilled mounting holes for stable anchorage. The design targets secure mounting of 1-5/8″ single strut channels to floors and concrete surfaces, suitable for electrical, plumbing, and HVAC applications. Installation is streamlined by the 4-hole corner pattern.
Who it’s best for: larger installations or teams needing consistent, quick mounting across many points. Why chosen: reliable square base, corrosion-resistant galvanization, and straightforward mounting. Caution: verify anchor bolt sizes and substrate strength to prevent loosening under heavy loads.
Buying Guide: Key Purchase Considerations
- Channel compatibility: Ensure the base fits standard 1-5/8″ strut channels and matches either single or double-channel configurations as required.
- Load capacity: Consider the expected load and choose units rated to handle at least the anticipated weight with a safety margin.
- Mounting surface: Determine whether you mount to concrete, wood, or metal and select a base with appropriate hole patterns and corrosion resistance.
- Corrosion protection: For outdoor or damp environments, electro-galvanized or galvanized steel bases are preferred for longevity.
- quantity needs: If undertaking a large project, consider multi-pack options to reduce procurement time and ensure consistent components.
- Installation ease: Look for pre-drilled holes and uniform base dimensions to simplify alignment and bolting.
FAQ
- Q: What is a double strut post base best used for? A: It secures a double 1-5/8″ channel to a floor or wall, providing stable support for larger framing jobs.
- Q: Are these bases suitable for outdoor use? A: Many are electro-galvanized or galvanized, offering corrosion resistance, but confirm environmental exposure and consider additional protective coatings if needed.
- Q: How many holes should I expect on a typical post base? A: A common pattern is four mounting holes; some models include additional side holes depending on orientation requirements.
- Q: Can I install these without professional help? A: Yes, standard drill-and-bolt installation is common, but ensure proper anchors and tools for your substrate.
- Q: How do I choose between a 4-hole and a 6-hole base? A: A 4-hole base suits simpler, evenly distributed loads; a 6-hole base can offer more anchoring options for irregular layouts.