Questions before ordering?
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A familiar seat. A different height setup.
Set the seat height around your work.
Choose the adjustable 62 series when a single fixed seat height does not suit your bench setup. These H and HB models are the height-adjustable counterparts to the fixed-height 62-series stools. Select the model's own adjustment range first, then choose a backrest and frame color.
Height is set manually at the leg inserts and secured with fasteners. For different users or workstations, choose the model with the range you need rather than expecting on-the-fly, seated gas-lift adjustment.
DOCUMENTATION YOU CAN CHECK
Manufacturer-backed confidence
Explore NPS warranty coverage, independent test results, emissions documentation and safe-use guidance before you choose.
10-year warrantyManufacturer defect coverage. Terms and exclusions apply.Read warranty terms ↗
Stool series testingSelected ANSI/BIFMA seating tests; results apply to tested specimens.Read series test report ↗
Low-emissions coverage6200 Masonite-seat stools included in NPS’s MAS certification category.View MAS certificate ↗
Safe setup & useFor screw-secured H/HB legs, use the model-specific unoccupied adjustment procedure.Read model instructions ↗
The ANSI/BIFMA report applies to its stated specimens and test sections. MAS includes the 6200 Masonite seating category (August 2026–August 2027). PDF links open the complete documents in a new tab.
Manufacturer-listed lead time: 1–2 days
Not a delivery guarantee. Availability, dispatch and freight timing are confirmed with your quote.
Similar appearance, different setup
The Masonite sitting surface and steel-frame appearance are familiar, but the height-adjustable H/HB models need their own height-range selection and assembly checks. Backrest adjustment is separate from seat-height adjustment. These are not swivel stools or pneumatic, gas-lift seats.
Prefer a fixed seat height? Compare the fixed-height 62 series.
Secure the setting before use
Align each insert with the required holes and secure the supplied screws, lock washers and washers. Set all four legs to the same height and follow the complete instructions.
An unpadded Masonite sitting surface
The 14-inch seat pan surrounds an 11.5-inch recessed Masonite insert held by eight rivets. It is not an all-steel seat or a vinyl-padded cushion.
A welded foot ring
The 5/8-inch outside-diameter foot ring is welded to the frame at four contact points. The foot ring is not a step or a place to stand.
HB adds an adjustable backrest
HB models include a backrest with 2 inches of vertical and 2 inches of forward/back adjustment. This adjustment is separate from setting the stool’s leg height.
Inspect the floor contact points
Check glides, fasteners and welds regularly. Stop use if the stool is unstable or any part is damaged; use only on a stable, flat, dry indoor surface.
Choose the range, not just the look
The 6230HB model is shown here. Choose a backrest or backless design and the leg-height configuration that suits your work area.
Choose the range around the actual work surface
Measure the finished worktop, underside obstructions and available space for the user before choosing. Consider knee room and foot support. Follow the assembly instructions when setting the leg positions; do not adjust the stool while seated.
Specifications
Choose a seat-height range, backrest and frame color above to see the selected model details.
| Height selection | Choose the leg-height configuration in the selector. Set all four legs at matching positions using the complete assembly instructions. |
|---|---|
| Height adjustment | Four adjustable-leg inserts secured with the supplied fasteners; not gas lift or swivel |
| Seat construction | 14-inch seat pan; 11.5-inch recessed Masonite insert; eight rivets |
| Frame | 18-gauge steel tubing, 7/8-inch outside diameter |
| Foot ring | 5/8-inch outside-diameter tubing, welded at four contact points |
| Backrest option | HB models only; 2 inches vertical and 2 inches forward/back adjustment |
| Frame colors | Grey or Black |
| Capacity wording | Manufacturer-listed 500-lb static capacity. The linked 24-hour test includes 6230H-10; it is not individual testing of every configuration. |
| Carton packing | 5 stools for the 18.5–26.5-inch range, 4 for 24.5–32.5, 3 for 30.5–38.5. Packing is not the quote quantity or a required order multiple. |
| Shipping weight | Request freight details for the selected configuration and quantity. |
| Manufacturer-listed lead time | 1–2 days; not a transit time or delivery guarantee |
| Warranty | 10-year limited manufacturer warranty, subject to its complete terms and exclusions |
Seat height and overall height including the backrest are different measurements. Allow space around the stool for movement and access; seat diameter does not describe the floor footprint.
Choose the exact configuration
List Prices below are for the configured stool in USD. Freight is quoted separately. Choose the quantity you need; manufacturer carton packing does not multiply the displayed price.
| SKU | Seat-height range | Backrest | Frame | List Price |
|---|---|---|---|---|
| 6230HB | 30.5–38.5 inches | With Backrest | Grey | $180.00 |
| 6230HB-10 | 30.5–38.5 inches | With Backrest | Black | $180.00 |
| 6224HB | 24.5–32.5 inches | With Backrest | Grey | $162.00 |
| 6224HB-10 | 24.5–32.5 inches | With Backrest | Black | $162.00 |
| 6218HB | 18.5–26.5 inches | With Backrest | Grey | $157.00 |
| 6218HB-10 | 18.5–26.5 inches | With Backrest | Black | $157.00 |
| 6230H | 30.5–38.5 inches | Backless | Grey | $136.00 |
| 6230H-10 | 30.5–38.5 inches | Backless | Black | $136.00 |
| 6224H | 24.5–32.5 inches | Backless | Grey | $118.00 |
| 6224H-10 | 24.5–32.5 inches | Backless | Black | $118.00 |
| 6218H | 18.5–26.5 inches | Backless | Grey | $113.00 |
| 6218H-10 | 18.5–26.5 inches | Backless | Black | $113.00 |
What arrives, and how ordering works
The height-adjustable leg set is part of these H/HB configurations. Install the four inserts with the supplied screws, lock washers and washers according to the complete instructions. HB models include the backrest components. Check parts and fasteners before use.
Your inquiry quantity counts configured stools, not cartons. Request packing, freight and availability details for your selected configuration and quantity.
Care, documents and support
Clean with mild soap, water and a soft cloth, then dry thoroughly. Inspect the glides, welds and fasteners regularly. Do not stand on the seat or foot ring. Keep all four legs at matching settings and stop use if a part is damaged or the stool is unstable.
Use the complete documents below. Series reports describe their stated specimens and scope, not individual certification of every color, height and backrest combination.
Sell Sheet ↗Complete 6200-series product sheet, including fixed and adjustable models.Assembly Instructions ↗Complete four-page backrest and adjustable-leg instructions. Includes leg inserts, screws, lock washers and washers.Care Instructions ↗Complete manufacturer care guidance. Mild soap, water and a soft cloth; dry thoroughly.Stool series seating test report ↗Selected ANSI/BIFMA seating tests on the specimens identified in the report. Results apply only to the stated specimens and test sections.500-lb static-load test report ↗Bureau Veritas 24-hour static seat-load report including model 6230H-10. Read the full report for the test conditions and specimen scope.MAS emissions certificate ↗Full certificate; 6200 Masonite stools appear in the bracketed model/category list. Valid August 2026–August 2027.Manufacturer warranty terms ↗Manufacturer limited-warranty terms and exclusions. Not an unconditional return guarantee.
Frequently Asked Questions
How does the seat-height adjustment work?
These H/HB models use four adjustable leg inserts, not a gas-lift lever. With the stool unoccupied, follow the complete assembly instructions to align the holes and secure the supplied screws, lock washers and washers. All four legs must be at the same height. Tighten and check the fasteners before use.
Which height range should I choose?
Choose around your finished work surface, underside clearance, knee room and foot support. Each leg-height configuration is a separate choice. Allow room around the stool for movement; the 14-inch seat diameter is not the floor footprint.
What is the difference between H and HB?
H identifies the adjustable-leg model. HB adds a backrest. The HB backrest provides 2 inches of vertical and 2 inches of forward/back adjustment independently of the seat-height setting. Both choices are offered in grey and black frames.
Is the seat steel, padded or able to swivel?
The steel seat pan holds an 11.5-inch Masonite insert secured with eight rivets. The sitting surface is unpadded, and these 62-series models do not swivel. The frame is steel, but that does not make the sitting surface an all-steel seat.
Does quantity one mean one stool or one carton?
Quantity one means one configured stool. Manufacturer carton packing is 5 stools for the 18.5–26.5-inch range, 4 for 24.5–32.5 and 3 for 30.5–38.5. Those carton figures are freight references, not a price multiplier or required order increment. NPS’s minimum-order terms do not require stool carton multiples.
What does the 500-lb static-capacity statement mean?
NPS lists a 500-lb static load capacity. The linked Bureau Veritas report applies a 500-lb seat load for 24 hours and includes model 6230H-10. That is not individual testing of every configuration or a guarantee for standing, dynamic impact or misuse. Follow the manufacturer’s complete safety guidance.
Is assembly required?
Yes. The adjustable legs must be installed and secured at matching settings. HB models also require the backrest assembly. Use the complete manufacturer instructions, tighten all fasteners before use, and recheck them at least every six months or after heavy or frequent use as instructed.
Does the Lightning Ship badge mean delivery in 1–2 days?
No. A manufacturer lead time is not a transit time or delivery guarantee. Confirm current availability, dispatch timing, freight service and receiving requirements when requesting a quote.
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