Sterling FS 1000

Floor spring for wooden and glass doors. Two-speed control, hold open at 90 degrees, double action.

Door weight: 60 to 80 kg
Door width, max: 1100 mm
Door height, max: 2100 mm
Body L × W × H: 254 × 105 × 54 mm

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Specification

Every row is a stated fact for the FS 1000. Where a fact is not stated for this model, the row says so and names the models that carry it.

Type: Floor spring
Mounting: Floor-recessedAvailable with top and bottom pivot accessories for wooden doors.
Mechanism: Not stated for this model
Speed control: Two-speed control for closing and latching
Rated door weight: 60 to 80 kg
Door width, max: 1100 mm
EN 1154 size: Not stated for this modelFloor springs carry no stated EN 1154 size and are matched on their rated door weight and width.
Door height, max: 2100 mm
Suitable for: Wooden and glass doors
Body, L × W × H: 254 × 105 × 54 mm
Housing: Cast iron housing body in a steel box
Top plate: Stainless steel matt
Hold-open: Built-in, at 90 degrees
Order codes: MMFS1000
Other features: Slim, compact size with left-right, front-back and top-bottom adjustment inside the boxDouble action to prevent door and wall damageLight weight for easy handling, with a gross weight of 3 kg

Dimensions
and door.

The body of the FS 1000 drawn to scale from its published dimensions, and the largest door it is rated for.

Body of the FS 1000 in millimetres: length 254, width 105, height 54, drawn from the specification.

Door envelope: a leaf up to 1100 mm wide and 60 to 80 kg, with the floor spring body drawn dashed below the floor at the pivot, at the same scale as the leaf. Leaf height is not dimensioned.

Photographs
of the FS 1000.

Studio photography, October 2026, on the grey studio ground as photographed. Open a photograph to see it larger.

Sterling FS 1000 floor spring with its cast body and speed adjusting valve inside a black box, cover plate removed, front view from above. Studio photograph.
Sterling FS 1000 floor spring, close top view of the cast Sterling body and the speed adjusting valve plate for closing and latching, cover plate removed. Studio photograph.
Sterling FS 1000 floor spring inside a black box, cover plate removed, overhead view. Studio photograph.

Marks, licences
and tests.

Each claim for the FS 1000 with the standard or licence behind it. A mark or test not stated for this model says so and names the models that carry it.

Certification and testing for the FS 1000
Claim	Evidence	Applies to
BIS certification	BIS licence CM/L 7700249814	FS 1000
CE marking	Not stated for this model	CE marked: DC 1800 LA, DC 1820, DC 2000, DC 2600 and DC 2900
Cycle test	Tested to 5,00,000 cycles in a government-approved lab	FS 1000
Quality management	ISO 9001:2015. Certified quality management system covering the company's manufacturing.	MM Efficient Gadget LLP
Facility	UL-audited manufacturing facility. In-house R&D and test lab. Painting and powder coating in-house.	MM Efficient Gadget LLP
Origin	Made in India	FS 1000

Certificates and licence details

Documents

Each file states its format and size before you download it. Files not yet published on this site are sent on request.

Files for the FS 1000, with format and size
Document	Format	Size
FS 1000 installation guide	PDF	On request
Sterling FS 1000 datasheet	PDF	On request
Sterling product brochureAll door closers and floor springs	PDF	9.5 MB
ISO 9001:2015Quality management system certification	PDF	On request
BIS licence: floor springsCM/L No. 7700249814	PDF	On request

Related guides

Floor spring or door closer? How to choose between themBoth control how a door closes, but they solve different problems. The deciding factors are usually the door material, the weight and whether anything can be seen.
ISI marking and IS 3564 explained for door closersISI, BIS, IS 3564, ISO 9001 and cycle testing get used almost interchangeably in product listings. They certify quite different things.

Questions about
the FS 1000.

What door weight does the Sterling FS 1000 floor spring take?

The FS 1000 is rated for doors from 60 to 80 kg, up to 1100 mm wide and up to 2100 mm high.

Can the FS 1000 be used on glass doors?

Yes. It suits both wooden and glass doors, and top and bottom pivot accessories are available for wooden door installations.

Does the FS 1000 hold the door open?

Yes, it has a built-in hold open at 90 degrees, and double action to prevent door and wall damage. It is tested to 5,00,000 cycles in a government-approved lab and weighs 3 kg gross.

The models rated nearest to the FS 1000: the same type first, then the closest of another type.

Sterling FS 3000
Floor spring, rated 90 to 120 kg and 1100 mm.
Hold open at 90 degrees.
Sterling DC 2000
Surface mounted, EN 3-4, rated 80 kg and 1100 mm.
Front control adjustment.
Sterling DC 2600
Surface mounted, EN 3-4, rated 80 kg and 1100 mm.
Front control adjustment. Holds open from 10 to 90 degrees.