Perforated Hanger Strap for Pipe Support: Selection, Installation and Limits

Last updated: September 11, 2026

Perforated hanger strap is a flexible metal strip with repeated holes that may be used to position or support certain pipes where the product, fasteners, supporting structure and local requirements permit.

It should not be confused with solid packaging strapping, rigid one-hole or two-hole pipe straps, clevis hangers, engineered pipe supports or seismic restraints. These products may look related, but they are selected, installed and evaluated differently.

For contractors and distributors, the key questions are not simply which material or gauge to buy. Pipe material, filled weight, support spacing, installation direction, substrate, fasteners, corrosion exposure and the manufacturer’s documented limitations all affect the completed support.

What Type of Pipe Support Is Being Specified?

The term “pipe strap” can describe several products that are not interchangeable.

Perforated hanger strap is supplied as a flexible roll with repeated holes. It provides adjustable fastening positions and may be suitable for certain light-duty positioning or support work where flexible strapping is permitted.

A one-hole or two-hole pipe strap is a rigid formed fitting made for a specific pipe size. It normally holds the pipe directly against a mounting surface.

Band hangers, loop hangers and clevis hangers are formed support components with defined installation arrangements. They are commonly selected when suspended piping requires documented support performance.

Solid packaging strapping is tensioned around cartons, pallets or industrial loads using seals, buckles or strapping tools. It is not a perforated pipe-support product.

Before comparing material, gauge or price, confirm which product category the drawing, contractor or customer requires. A flexible perforated roll is not automatically interchangeable with a rigid, listed or engineered pipe hanger.

Where Perforated Hanger Strap May Be Appropriate

Perforated strap can be practical when the installation is light-duty, the strap is permitted for the application and the supporting assembly has been properly selected. Common examples include positioning small service lines, restraining light noncritical piping and general maintenance work.

The repeated holes allow installers to cut the roll to length and select convenient fastening points. However, the perforations reduce the metal remaining across the strip and create possible tear-out locations. Flexibility and ease of installation should not be treated as proof of load capacity.

Applications That Require Separate Verification

Do not assume that a general-purpose perforated strap is suitable for fire sprinkler piping, fuel-gas piping, steam lines, hazardous process piping, seismic restraint, heavy suspended pipe or structural bracing.

These systems may require approved, listed or engineered hangers and defined attachment methods. The applicable code, project specification, pipe manufacturer and authority having jurisdiction take priority over a general product description.

For ordinary plumbing work, suitability still depends on the pipe material, filled weight, orientation, support spacing, fasteners and supporting structure. A small pipe is not necessarily a light load once its contents and insulation are included.

Specifications to Confirm Before Ordering

A usable quotation should identify the intended application, pipe material, installation direction and service environment.

Buyers should confirm the finished strap width, actual measured thickness, material grade, surface finish, hole diameter, hole shape, center-to-center hole pitch and roll length. Dimensional tolerances, edge condition, burr limits, unit packaging, carton quantity, labeling and pallet requirements should also be agreed before production.

Gauge descriptions can vary by material and market. For repeat orders, state the actual thickness in millimeters or inches alongside any gauge reference.

Where load performance is required, ask what assembly was tested and how the test was conducted. A strip tensile result or fastener pull-out value should not be presented as the allowable load of the complete installation.

For a complete measurement checklist, review our perforated hanger strap specifications guide.

Gauge Is Not a Load Rating

A lower gauge number generally indicates thicker sheet within the same gauge system, but thickness alone does not establish the allowable load of a pipe-support assembly.

The completed installation depends on the strap material, actual thickness, finished width, perforation geometry, fastener size, number of fasteners, edge distance, bend geometry, substrate and installation direction.

Any load value should identify the tested product, test arrangement, failure mode and safety basis. If this information is unavailable, the value should not be used as a design load.

For a fuller explanation, read how strong is perforated hanger strap before comparing products by gauge alone.

Material and Finish Selection

Galvanized steel is commonly considered for dry indoor installations and general construction use. Its corrosion performance depends on the coating specification, environment, fabrication method and condition of the cut edges. “Galvanized” by itself is not a complete purchasing specification.

Stainless steel may be considered for humid, outdoor, coastal or chemically exposed environments, but the appropriate stainless grade must still be matched to the actual exposure.

Solid copper, copper-plated steel and copper-colored coatings are different products. Buyers should confirm which material is being supplied. Where dissimilar metals may remain in wet contact, suitable isolation may be required to reduce galvanic interaction and abrasion.

For additional material guidance, see galvanized vs stainless steel hanger strap.

Installation Checklist

Before installation, confirm that flexible perforated strap is permitted for the pipe and system. Determine the supported weight, including the pipe, contents and insulation, and verify the strap, fasteners and substrate as a complete assembly.

Cut the strap with a suitable tool and remove sharp burrs. Do not use torn, distorted or elongated holes. Avoid severe folds that damage the coating or concentrate stress beside a perforation.

Select fasteners for the supporting material and installation direction. A fastener intended for timber may not be suitable for masonry, concrete or thin sheet metal. Follow the fastener manufacturer’s requirements for embedment and edge distance.

Prevent the strap from cutting into, flattening or abrading the pipe. Allow for thermal movement where required and isolate incompatible materials when necessary.

After installation, check for strap twisting, hole deformation, fastener pull-through, unstable movement and incomplete fastener engagement.

Inspection and Replacement

Inspection frequency should follow the facility maintenance plan, project requirements, service environment and consequences of failure. There is no reliable universal inspection interval for every installation.

Inspect for corrosion, damaged coatings, torn or elongated holes, loose fasteners, pipe abrasion, strap deformation and movement at the structural attachment.

Where repeated damage occurs, investigate the load, material compatibility, vibration and fastening arrangement instead of treating the visible damage alone.

Replace severely corroded, cracked or deformed components. Do not straighten and reuse damaged strap where support failure could create a safety risk.

Conclusion

Perforated hanger strap can provide an adjustable solution for appropriate light-duty pipe-support and positioning work. Its convenience, however, does not make it a universal pipe hanger.

Reliable selection starts with the application and completed support assembly, not the product name or gauge alone. Confirm the pipe, supported weight, spacing, material compatibility, fasteners, substrate and applicable requirements before installation or procurement.

For a factory quotation, provide the intended application, finished width, actual thickness, hole diameter and pitch, material and finish, roll length, packaging, order quantity and target market. Application photographs or drawings can help identify missing specifications before sampling.

You can also review our perforated hanger strap products when preparing an inquiry.

FAQ

Can perforated hanger strap support any type of pipe?

No. Suitability depends on the pipe material, filled weight, support spacing, system requirements, strap specification, fasteners and substrate. Some systems require rigid, listed or engineered hangers.

Does a thicker gauge always mean a safer installation?

No. Greater thickness may increase stiffness, but the completed support can still be limited by the perforated hole, fastener, substrate, bend geometry or installation method.

Can galvanized steel strap contact copper pipe?

The risk depends on moisture and the materials in contact. Where dissimilar-metal contact may remain wet, suitable isolation should be considered according to the project requirements.

Is stainless steel always required outdoors?

Not automatically. Material selection depends on moisture, chlorides, chemicals, expected service life and maintenance. The stainless grade or galvanized coating specification must still be confirmed.

What information should be included in an RFQ?

Include the application, finished width, actual thickness, hole diameter and pitch, material and finish, roll length, tolerances, packaging, quantity, target market and any required test documentation.