About these parts

Base plates, cap plates, fin plates, end plates, gussets, stiffeners and splice plates for steel frames, cut to your sizes with the bolt holes in place.

Who orders them: Steel fabricators, groundworkers, builders and structural engineers, usually in S275 or S355 mild steel from 6 to 25 mm.

Open any design below in the Nesting Studio, type in your sizes, holes and quantity, and the price updates as you go. Identical parts share one part mark and are nested together on the sheet.

Designs in the shape library

Base plateColumn base plate with n x m holding-down bolt grid, edge distance and corner radius.
Base plate, slotted holesBase plate with slotted holes for site tolerance on holding-down bolts.
Column cap plateColumn cap plate with bolt holes for the beam over.
Beam end plateFlush beam end plate: bolt rows down at gauge g and pitch p.
Moment connection plateExtended moment end plate with top and bottom bolt groups, 2 or 4 bolts per row.
Fin plateFin plate: single line of bolts at distance ex from the free edge, optional top corner chamfer.
Web / flange stiffenerPartial-depth stiffener with corner snipes to clear the root radius.
Full-depth stiffenerFull-depth stiffener between flanges, snipes at both root corners.
Gusset plateRight-angle gusset, chamfered toes, root snipe and bolt holes along each leg.
Knee brace gussetCorner gusset with a raking edge leaving straight legs of depth b, bolt holes on each leg.
Haunch plate (tapered)Tapered haunch web plate: depth h at the column face reducing to h2.
Flange splice plateFlange cover plate with mirrored bolt groups each side of the joint.
Web splice plateWeb splice plate with vertical bolt rows each side of the joint.
Flat cleatFlat bolted cleat with a bolt grid.
Shim / pack plate (slotted)Packing shim with open U-slot(s) so it can be slid in around installed bolts.
Lifting lugLifting lug, radiused head with shackle pin hole, optional base bolt holes.
PadeyeTapered padeye: wide base sweeping tangentially into a radiused head with pin hole.
Bearing plateBearing / spreader plate, plain or with fixing holes.
Purlin cleatPurlin cleat with raked top corner and a pair of M12 purlin bolt holes.
Doubler / cranked plateDoubler plate with corner chamfers and optional plug-weld hole grid.
Ring stiffener (CHS)Annular ring stiffener for circular hollow sections.
CHS cap plateRound end cap for a CHS post with a drain / vent hole.
Tie plateTie / strap plate with bolt groups at each end.
HD washer plateSquare holding-down washer plate with a centre hole (or slot) for HD bolts.
HD anchor plateCast-in anchor plate for the bottom of a holding-down bolt, centre hole plus optional corner holes.
Beam seating plateBeam seating plate with slotted holes for adjustment.
Stair stringer end plateStringer end plate with the top edge raked to the stair pitch and a column of holes.
Stair tread fixing plateSmall fixing plate for stair treads with horizontal slots.
Sole plateLong sole / wall plate with fixings at regular centres.
Kicker plateKicker / toe plate strip with slotted fixing holes.
Bracing gusset (slotted)Bracing gusset with a raked corner and a slot along the brace line at angle a.
Edge protection post basePost base plate with four fixing holes and a centre socket hole.
Column splice cover plateBolted column splice cover: flange or web cover plate for a UC serial size, two bolt groups either side of the joint gap.
Column division plateDivision plate between two columns at a bearing splice: rectangle with optional corner holes for erection cleats and a vent hole.
Bracing gusset, slottedCorner bracing gusset (triangle with clipped corner) with bolt holes on two legs and slotted holes along the brace line for site adjustment.
Knee brace plateFlat knee / fly-brace plate: a parallelogram strip with a bolt hole each end, angled ends square to the brace line.
Cap plate with drain holesHollow-section cap or base plate with corner drain / vent holes just inside the tube wall (for draining and venting) and optional bolt holes outside.
End plate with weld accessPartial-depth end plate with scalloped notches top and bottom for weld access, two vertical bolt lines at gauge g. Typical simple-connection proportions.
Fin plate, typical sizesSingle-line fin plate in typical simple-connection proportions: M20 8.8 bolts in 22 mm holes at 70 mm pitch, 50 mm end and 50 mm edge distances. Check against your connection design.
Partial end plate, typicalPartial-depth flexible end plate in typical proportions: 150 or 200 wide, M20 bolts in 22 holes, 90 or 140 cross centres, 70 pitch, 40 end distance. Check against your design.
Z purlin cleat (flat)Flat blank for a Z purlin cleat: two rows of M12 purlin holes at the cleat top, slotted rafter fixings at the foot and an etched bend line for the cleat return.
C / Sigma purlin cleatCleat plate for C or Sigma section purlins: purlin holes in a pair at the top, slotted fixings to the rafter at the foot.
Side rail cleatSide-rail (girt) cleat: tab welded or bolted to the column with two rail holes and a slotted column hole.
Sag rod / anti-sag plateSmall plate for anti-sag rods: angled rod holes at the chosen angle and fixing holes to the purlin or eaves beam.
Eaves beam cleatEaves beam cleat with a sloped top to the roof pitch, two beam holes and a column fixing pattern.
Horseshoe shimHorseshoe (U) packer that slides round a bolt after the steel is up: rounded closed end and an open slot sized for the bolt.
Bearing / slip pad plateBearing or slip pad plate with slotted holes in one direction for thermal movement, and an etched centre cross for setting out.
Comb packer (twin slot)Packer with two open slots (comb) so it slides past a pair of holding-down bolts; set the bolt centres and bolt size.
Portal apex plateApex connection end plate for a portal rafter: rectangle with paired bolt rows in the top and bottom zones.
Lintel / padstone plateSpreader plate under a beam end on masonry: plain rectangle with optional fixing holes for resin anchors and an etched beam centre line.
Joist hanger flat blankFlat pattern for a welded/folded timber joist hanger: cross-shaped blank with nail holes, the seat and side flaps marked by etched fold lines.
Rail clip plateRail clamp / clip plate: rectangle with a slotted bolt hole for adjustment and a stepped toe that bears on the rail foot.
Lacing / batten barLacing bar for a laced or battened built-up member: flat bar with angled ends and one bolt hole (or none for welded) at each end.
Toe plate / kick stripToe plate strip for platforms and walkways: long flat with slotted fixing holes at the pitch you set and optional drainage notches along the bottom edge.
Ladder wall bracketFixed-ladder stand-off bracket: tapered arm with two wall fixing holes on the foot and two stile bolt holes at the tip.
Gutter support bracketFlat gutter support bracket: L-shaped cradle with fixing holes in the back leg and a lip to hold the gutter edge.
Fly brace cleatSmall cleat that takes a fly brace off a purlin: tab with one round hole and one slotted hole set at the brace angle.
Notched web doublerSupplementary web plate with corner notches to clear the root radii of the section, and optional bolt holes for plug or bolted fixing.
Wind post head plateWind-post head restraint plate with long vertical slots so the slab can deflect without loading the post.
Beam cope marking templateThin marking template for cope / notch cuts on beam ends: L-shaped profile of the cope with a radiused internal corner to scribe round.
Base plate, bolts round the edgeBase plate with holding-down bolts spaced evenly round all four edges and an open centre: bolts per side, edge distance and hole size.
Base plate with grout and vent holesFour-bolt base plate with a central grout-filling hole and small vent holes so grout can flow under the plate without air pockets.
Base plate with shear key slotBase plate with a rectangular slot in the centre to take a welded shear key, plus four holding-down bolt holes.
Base plate with diagonal slotsBase plate with the four holding-down holes slotted towards the centre on the diagonals, for tolerance in both directions.
Lighting column base flangeSquare base flange for a lighting column or pole: chamfered corners, four bolts on a PCD and a central cable entry hole.
Mast base flange, two bolt ringsRound base flange for a mast or pole with two concentric rings of bolts and a central opening.
Octagonal base plateOctagonal base plate with bolts on a PCD and an optional centre hole, for poles and round columns.
Knife plate (tapered brace end)Tapered plate that slots into the end of a tube brace: wide bolted end with a bolt group, narrowing to the welded end.
Skewed fin plateFin plate for a beam meeting the supporting member at an angle: parallelogram outline with one line of bolts.
Fin plate with flange notchFin plate with a rectangular notch in the bottom corner to clear the supporting beam flange.
Extended fin plate, two bolt linesLong fin plate with two vertical lines of bolts for an extended connection.
Truss node gusset plateFive-sided gusset for a truss node: bolt rows along the chord and two raking diagonal bolt groups.
Truss heel gussetHeel gusset where a raking top chord meets the bottom chord: sloped top edge at the roof pitch, bolt rows on both members.
Saddle gusset for round tubeGusset whose bottom edge is a concave arc so it sits on a round tube, with bolt holes in the upper part.
Bolted RHS splice flangeSquare or rectangular end plate for a bolted hollow-section splice: bolts outside the tube on all four sides, tube outline etched.
Slotted tube end capEnd cap for a tube brace with a through-slot for a gusset plate to pass: square or round outline.
Box-section diaphragm plateInternal diaphragm for a fabricated box section: corner snipes to clear the welds and a central access or lightening hole.
Web opening reinforcement platePlate that reinforces a service hole in a beam web: radiused rectangle with a matching round or rectangular opening.
Flitch plateLong steel plate for a flitch beam between timbers: bolts staggered in two rows along the length, with end bearing zones clear.
Tie-rod wall bracketWall plate with a projecting lug and pin hole, cut as one piece, for canopy and glazing tie-rods.
Brickwork support bracketProfile of a masonry support bracket: vertical back leg with a long slot for height adjustment, raking gusset and a toe to carry the support angle.
Balcony connection plateEnd plate for a bolt-on balcony bracket: two columns of bolts top and bottom with a slotted shear location hole in the middle.
Floor plate panel with lifting holesRemovable floor or trench cover panel: radiused corners, two finger or key lifting holes and countersink-size fixing holes at the corners.
Grating fixing clipSmall clip plate that holds open-mesh grating down onto the steel: centre bolt hole and two hooked toes.
Cone / reducer flat patternFlat pattern for a truncated cone (concentric reducer or round hopper): large and small diameters and height; split into equal segments for big cones. Uses mean diameters, so enter them to the plate centre line.
Pyramid hopper side panelOne side of a square or rectangular pyramid hopper, drawn to its true slant height from the top size, outlet size and vertical height.
Tube saddle (fish-mouth) wrap templateWrap-round template for marking the saddle cut where a branch tube meets a main tube at an angle: wrap the template round the branch and scribe along the curved edge. Cut it from thin sheet.
Lobster-back bend segment templateWrap-round template for one middle segment of a segmented (lobster-back) bend: tube OD, bend radius and number of segments in 90°.
Auger / screw flight blankFlat ring blank that is stretched into one turn of a screw conveyor flight: outside Ø, shaft Ø and pitch. The ring is cut through so it can be pulled out to the helix.
Cruciform base plateCross-shaped base plate for a cruciform or cross-stiffened column, with a holding-down bolt in each arm.
Corner column base plateL-shaped base plate for a column at a building corner, with bolts kept away from the slab edges.
Beam hanger plateHanger plate for suspending a beam: a long plate with bolt groups at top and bottom.
Tapered cantilever end plateTapered end plate for a cantilever canopy beam, deeper at the top where the moment is.
Purlin sleeve splice plateFlat splice plate for joining purlin lengths, with two bolt groups on standard gauge lines.
Dog-bone tie plateWaisted tension tie plate with rounded ends and a bolt hole in each end.
Coped bearing stiffenerBearing stiffener with corner snipes at both ends and a top cope to clear the flange weld.
Angle cleat flat blankDeveloped flat blank for a pressed angle cleat, with the bend line etched and holes in both legs.
Spreader beam lugTop lug for a spreader beam with a sling eye hole and a weld base.
Slab edge support bracketBracket plate supporting a slab edge trim, with slotted holes for line and level.
Deck closure stripLong closure or edge trim strip with fixing holes at a set pitch, before folding.
Cellular beam cutting templateTemplate strip with a row of circular web openings at a set pitch, for marking or cutting cellular beam webs.

Typical prices

Worked out live from current rates for parts like these in mild steel, ex VAT. Click a row to open it in the Nesting Studio and change it.

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