GUB56 Guardrail 56 lbs Base
The Frontline GUB56 is a non-penetrating guardrail base that holds the guardrail upright with weight alone - no drilling. At 56 lbs it is the lightest base in its class, with two extended EPDM rubber supports on both sides for extra stability and a non-marring footprint.
Made from ASTM rated steel with an electrostatic paint finish, the rails slide perfectly into the base fittings and the system installs in just minutes. Four holes let you drill into the substrate for an optional fixed-application install. Built to the OSHA guardrail criteria of 1910 and 1926 - the building block of a free-standing perimeter.
Product Video
See the Frontline non-penetrating guardrail system protect roof edges and openings as passive fall protection.
Who Needs This Product
This product is a non-penetrating guardrail base - the weighted foot that holds guardrail posts and rails on a surface without drilling. Crews add bases to build or extend a free-standing guardrail run on flat roofs and slabs.
Features
No drilling, no roof damage
Holds the guardrail by weight alone, leaving membranes and decks intact.
Stable in wind and bumps
The two extended rubber supports widen the footprint so the post resists tipping.
One-worker handling
Light enough to carry and reposition by hand as the work moves along the edge.
Fixed when you need it
Four pre-drilled holes let you anchor the base permanently in exposed locations.
Pick up and reuse
Recover the bases at the end of the job and redeploy them on the next roof.
Pairs with the full guardrail line
Accepts the same rails, gates, and toe boards as the rest of the system.
Technical Specifications
| SKU | GUB56GRN / GUB56YLW / GUB56HDG |
|---|---|
| Type | Non-penetrating guardrail base |
| Weight | 56 lbs |
| Stability | Two extended EPDM supports on both sides |
| Fixed option | 4 holes to drill into the substrate |
| Material | ASTM rated steel |
| Finish | Electrostatic paint |
| Installation | Non-penetrating; rails slide into base fittings |
| Standards | OSHA 1910; OSHA 1926 |
Passive protection, installed right. A guardrail only protects if every base, post, rail, and toe board is set per the Frontline manual on a suitable surface. Have a competent person verify the installed system before it is relied upon, and re-inspect after any impact.
Compliance Standards
OSHA 29 CFR 1926.502
Guardrail system criteria for construction: 200 lb top-rail load, heights, and toe boards.
OSHA 29 CFR 1910.29
Walking-working surface guardrail requirements for general industry.
Engineered design
Components are engineered to meet the applicable OSHA guardrail load criteria per the spec sheet.
Typical Applications
How to Set Up the GUB56
Follow the manufacturer's manual. The sequence below is an overview only.
- Inspect. Check bases, posts, rails, and fittings before each use.
- Plan the run. Lay out base/post positions per the manual maximum spacing for your edge.
- Set the bases. Place the non-penetrating bases (or clamp/anchor per the system) along the edge.
- Install posts and rails. Slide posts into the base fittings and seat top rails, mid rails, and toe boards.
- Secure. Tighten grub screws and connections per the manual.
- Verify. Have a competent person confirm the system before relying on it.
Inspection and Retirement
Inspect before each use and after any impact. Pull any component from service for the conditions below.
- Posts and bases: bending, cracks, corrosion, or coating breakdown.
- Clamping / counterweight: secure, no slipping under hand load.
- Rails and toe boards: secure seating in the fittings, no damage.
- Fasteners and grub screws: present, functional, tightened per the manual.
- Markings: labels must be present and legible.
Remove any component from service that fails inspection. After any impact or load event, inspect the full system before reuse. Guardrail is passive protection: a damaged system gives false confidence.
Frequently Asked Questions
Frontline GUB56GRN Submittals and Documentation
Frontline GUB56 User Manual (PDF)Installation, spacing, inspection, and OSHA compliance. Frontline Guardrail Test Report (PDF)Third-party test results for the guardrail system. Frontline Guardrail System Brochure (PDF)Overview of the Frontline non-penetrating guardrail system line. Frontline Catalog (PDF)The full Frontline Fall Protection product catalog.Compatible and Related Products
- Frontline GUS05 Complete Guardrail Kit. A complete bases-plus-rails kit.
- Frontline GUC2X4 Slab Grabber. A clamp-on guardrail for concrete slab edges.
- Frontline GUP2X4 Parapet Guardrail. A parapet-wall clamp guardrail.
Railing Off an Edge or Opening?
Guardrail layouts depend on your edge, substrate, and span. Confirm your jobsite conditions with us and we will walk through the guardrail lineup so the right bases, posts, and rails ship together.
Call 863-703-4522 to talk to a fall protection specialist.
