Bostitch Flooring Stapler: Pros, Cons, and Buying Guide

Walk into any pro hardwood install crew’s truck and you will find one of two pneumatic guns — a Powernail 50P-Flex cleat nailer or a bostitch flooring stapler, usually the MIIIFS or the MFN-201. Bostitch has built a reputation across decades for staplers that handle 3/4 inch solid oak, hickory, and maple installs without misfires or splits when set up correctly. The choice between Bostitch and the competition often comes down to staple availability, jam-clearing speed, and how the gun feels on the 700th board of a long day. Here is what to know before you buy or rent one.

The Bostitch Flooring Stapler Lineup

The MIIIFS is the legacy 1 1/2 inch hardwood stapler — 15.5-gauge, narrow-crown staples, designed for 1/2 inch to 3/4 inch tongue-and-groove hardwood. The gun weighs 10.5 pounds, runs on 70 to 120 PSI, and ships with the standard interchangeable base plates for different plank thicknesses.

The MFN-201 is the modern flagship — combination stapler and cleat nailer in one tool. Switch between 15.5-gauge staples and 16-gauge L-cleats by changing the magazine. The dual functionality makes it the right buy for crews that work with both engineered (cleat-friendly) and solid (stapler-friendly) hardwood throughout a job week.

The S2 Crown Stapler is a smaller-gauge gun for engineered hardwood installs up to 1/2 inch thick — appropriate for thinner planks where a 15.5-gauge staple would split the tongue.

Staple Specs and Availability

The MIIIFS and MFN-201 use 15.5-gauge, 1/2 inch crown staples ranging from 1 inch to 2 inches in length. Standard 1 1/2 inch staples handle most 3/4 inch solid hardwood. 2 inch staples are used for thicker site-finished oak and the occasional 7/8 inch reclaimed plank.

Bostitch SX50351-1-1/2 (1 1/2 inch) and SX50352-2 (2 inch) are the most-used SKUs. Both are widely stocked at Home Depot, Lowe’s, and pro fastener suppliers. Universal-fit equivalents from Bostitch’s competitors fit but Bostitch’s own staples deliver the most consistent set depth.

Pricing and Where to Buy

The MIIIFS prices at $325 to $425 new at most flooring tool retailers. Used and reconditioned units run $185 to $275 through eBay, Acme Tools, and CPO Outlets. Rental costs at Home Depot or Sunbelt Rentals land at $42 to $58 per day, $115 to $145 per week.

The MFN-201 sits at $475 to $625 new. The dual-function design earns the premium for crews that install both solid and engineered hardwood regularly. The S2 Crown Stapler runs $185 to $245.

For a single 1,200 square foot install, renting the MIIIFS for a weekend at $115 total beats buying outright unless you plan repeat projects.

Pros of Bostitch Staplers

Staple set depth is consistent. Properly tuned at 90 PSI with a clean compressor line, the MIIIFS delivers staples flush with the tongue 95+ percent of the time. The remaining 5 percent require a nail set and hammer to drive flush — manageable across a full install.

Jam clearing is fast. The tool-free side latch on the MIIIFS opens the magazine in under 10 seconds for clearing bent staples or debris. Compare to older guns requiring an Allen key or screwdriver to clear jams.

The base plate system handles 1/2 inch, 5/8 inch, and 3/4 inch tongue heights with interchangeable plates included in the box. The plate alignment maintains consistent staple angle relative to the tongue, which is the difference between clean installs and split boards.

Cons to Know About

Weight matters across a long day. At 10.5 pounds, the MIIIFS is heavier than the Powernail 50P-Flex at 8.5 pounds. Crews installing 800+ square feet in a day feel the difference by hour six.

Air consumption is high. The MIIIFS runs through roughly 12 to 18 CFM at peak demand. Pancake compressors (6-gallon, 2.6 CFM at 90 PSI) cannot keep up across continuous installation — you need at minimum a 4 CFM compressor with a 30-gallon tank, or productivity drops noticeably with constant air pressure cycling.

Staple cost runs slightly above L-cleat cost. For a 1,000 square foot install at typical staple spacing (8 to 10 inches apart), expect to use 1,200 to 1,500 staples — roughly $45 to $65 in Bostitch SX5035 series staples versus $35 to $50 in 16-gauge L-cleats for a comparable cleat-nailer install.

Staples vs Cleats: Which Is Better

The hardwood install community has argued this for 30 years. Staples (narrow-crown, 15.5-gauge) hold tighter and pull through less when boards expand and contract. L-cleats (16-gauge) flex with the wood movement and are less likely to split tongues on harder species like hickory at 1820 Janka.

The practical answer: use staples on oak, maple, and softer species; use L-cleats on hickory, walnut, and exotic species. The MFN-201 lets you switch between both in one tool, which is why it has become the modern crew default.

How Bostitch Compares to Competitors

Powernail 50P-Flex is the lightest in the category at 8.5 pounds and delivers the smoothest trigger feel. Owners report fewer hand-fatigue complaints across long install days. Pricing is comparable at $385 to $495 new.

Freeman PFL618BR is the budget option at $145 to $195 new — adequate for occasional DIY installs but not engineered for daily contractor use. Mechanical reliability over 100,000+ staple cycles falls noticeably short of Bostitch and Powernail.

Senco SHF15 is the under-recognized alternative at $275 to $345 new with construction quality comparable to Bostitch. Staple availability is the soft spot — Senco staples are harder to source at local big-box stores.

Setup and Tuning for Best Results

Run the gun at 85 to 95 PSI for most 3/4 inch hardwood installs. Test on a scrap board first — staples should set flush with the tongue, not driven below it. Over-driven staples weaken the tongue and create future click failures.

Oil the gun every 3 to 5 magazines with Bostitch Premium Pneumatic Oil or equivalent 10W non-detergent. Skipping the oil routine kills the gun’s O-rings within 50,000 cycles and turns a $400 tool into a $200 paperweight.

Use a coupler-and-filter setup on the compressor line. Water in the air supply rusts internal components and produces inconsistent set depth across the install.

Brand Spotlight: The MFN-201 for Mixed Installs

If you are buying one Bostitch flooring tool to handle a range of jobs, the MFN-201 is the right choice. The dual stapler-and-cleat function adapts to oak, maple, hickory, walnut, and engineered hardwood with a 5-minute magazine swap. Build quality matches the MIIIFS — the MFN-201 is engineered for daily commercial use, not occasional DIY.

At $475 to $625 new, the premium over a single-function stapler buys flexibility across a range of species and product types. For crews running 200+ hardwood installs per year, the MFN-201 pays for itself in tool inventory simplification alone.

Who Should Buy Which Bostitch Tool

For occasional DIY installs (1 to 3 projects in the next five years), rent the MIIIFS rather than buy. For homeowner-handyman use across 10+ installs, buy the MIIIFS used at $185 to $275. For professional install crews, the MFN-201 is the right purchase. For dedicated engineered hardwood installers working with thin planks, the S2 Crown Stapler handles 1/2 inch material without splitting tongues. Match the tool to the workload and the staples to the species, and Bostitch delivers what 50 years of pro installers have relied on.