Selection Summary
*PerformancePlus, Tapped Holes in Work Surface**	Stiffest tabletop with the highest level of dampening.
*Performance, Tapped Holes in Work Surface**	Stiff breadboard with good dampening, offering a balance of cost and performance.
Performance, Solid Work Surface**	Stiff breadboard with good dampening, offering a balance of cost and performance.
Performance, Non-Magnetic	Constructed of non-magnetic 304L Stainless Steel

*These tabletops are also available in a 4.3” thick version.
**Please request a quote for a solid work surface option on a PerformancePlus or Non-Magnetic tabletop option.

See Our Full Line of Optical Breadboards and Frames

For more information on vibration and dampening, please read our tutorial.

Features

Excellent Surface Flatness up to ±0.1 mm Over any 0.3 m²
Athermalized Design for Excellent Thermal Stability
Dual Layer, Honeycombed Structure Provides Good Dampening

Thorlabs provides a line of breadboards for our modular, ergonomic ScienceDesk that is provides a rigid, flat, and thermally stable tabletop. These breadboards, when combined with our ScienceDesk Frames make an ideal workstation for multiple applications and disciplines. To complete your workstation, Thorlabs offers a line of accessories including overhead shelves, side shelves, computer shelves, keyboard and monitor holder.

Rigidity
Many optical experiments require very accurate alignment of the optical axes and therefore necessitate a work surface that has low deformation under its own weight and the weight of the experiment. Rigidity is a function of its stiffness which is not just the thickness of the breadboard but its strength-to-weight ratio. Our breadboards feature a honeycomb structure sandwiched and bonded between two metal plates which give them a high strength-to-weight ratio. The differences in the construction of the boards, as shown below, vary the stiffness of the breadboard.

Dampening
The breadboard is isolated from environmental vibrations, depending on the frame chosen, but it can experience vibration from devices in the setup. For low frequency vibration, commonly found in the lab, the stiffness of the work surface is primarily responsible for dampening effects. The differences in the construction of the boards, as shown below, vary the stiffness of the breadboard.

ScienceDesk Frames
The ScienceDesk frame is a portable vibration-isolation platform. Every outside edge on the welded steel frame is rounded and the optical breadboard is inset in the ScienceDesk frame so that it is protected from incidental contact. The ScienceDesk frame is available in three different sized work surfaces and four vibration isolation options.

ScienceDesk Accessories
The accessories for Thorlabs' ScienceDesk series workstations provide an array of custom configurations to meet almost any workspace requirement. They include overhead shelves, side shelves, lower shelves,a monitor mount allows most standard flat panel monitors to be supported, keyboard mounts, and a wrist rest.

Product	PerformancePlus	Performance	Performance, No Holes	Performance, Nonmagnetic
Finish and Construction
Breadboard thickness	60 mm (2.4")
Flatness, Ove Any 0.3 m²	±0.10 mm (±0.004")	±0.15 mm (±0.006")	±0.15 mm (±0.006")	±0.13 mm (±0.005")
Construction	Athermalized, Triple-Plate, Double Honeycomb-Core	Athermalized, Double-Plate, Single-Honeycomb Core
Top and Bottom Plates	5 mm (3/16") Thick, Magnetic Stainless Steel			5 mm (3/16") Thick, Non-Magnetic 304L SS
Main Core	High-Density Plated Steel Honeycomb			High-Density Aluminum Honeycomb
Intermediate Core	13 mm (0.15")Thick Plated Steel Sealing Cup Cell Size: ~1.6 cm² (0.25 in²)	n/a
Damping	Enhanced Proprietary Damping	Proprietary Broadband Damping
Sides	Black, Laminated-Steel Sides, Slightly Inset			Black, Laminated-Aluminum Sides, Slightly Inset
Finish	Top Plate is Brush Finished
Mounting Holes
Metric	M6 Tapped on 25 mm Centers		No Holes	M6 Tapped on 25 mm Centers
Imperial	1/4"-20 Tapped Holes on 1" Centers		No Holes	1/4"-20 Tapped Holes on 1" Centers
Distance from Edge to First Hole
Metric	50 mm on All Sides		No Holes	50 mm on All Sides
Imperial	2.0" on All Sides		No Holes	2.0" on All Sides
Maximum Screw Depth from Top Surface	6 mm	6 mm	No Holes	6 mm

PerformancePlus Weights and Dimensions

Item #	PBI11111	PBI11112	PBI11115	PBI51511	PBI51512	PBI51515
Dimensions (L x W x H)	3' x 2.5' x 2.4"	4' x 2.5' x 2.4"	4' x 3' x 2.4"	900 mm x 750 mm x 60 mm	1200 mm x 750 mm x 60 mm	1200 mm x 900 mm x 60 mm
Unpackaged
Mass (kg)	83	108	132	68	102	124
Weight (lbs)	182.98	238.09	291	149.91	224.86	273.36
Packaged
Mass (kg)	93	121.25	143	78	117	138.29
Weight (lbs)	204.6	266.76	314.6	171.6	257.4	304.24

Performance Weights and Dimensions

Item #	PBH11111	PBH11112	PBH11115	PBH51511	PBH51512	PBH51515
Dimensions (L x W x H)	3' x 2.5' x 2.4"	4' x 2.5' x 2.4"	4' x 3' x 2.4"	900 mm x 750 mm x 60 mm	1200 mm x 750 mm x 60 mm	1200 mm x 900 mm x 60 mm
Unpackaged
Mass (kg)	62	82	98	60	80	95
Weight (lbs)	136.68	180.77	216.04	132.27	176.36	209.43
Packaged
Mass (kg)	81	104	143	67	89.36	128.27
Weight (lbs)	178.2	228.8	314.6	147.4	196.6	282.19

Performance, No Holes Weights and Dimensions

Item #	PBH11111/NH	PBH11112/NH	PBH11115/NH	PBH51511/NH	PBH51512/NH	PBH51515/NH
Dimensions (L x W x H)	3' x 2.5' x 2.4"	4' x 2.5' x 2.4"	4' x 3' x 2.4"	900 mm x 750 mm x 60 mm	1200 mm x 750 mm x 60 mm	1200 mm x 900 mm x 60 mm
Unpackaged
Mass (kg)	62	82	98	60	80	95
Weight (lbs)	136.68	180.77	216.04	132.27	176.36	209.43
Packaged
Mass (kg)*	82.27	108.64	130.45	80	101	105.22
Weight (lbs)*	181	239	287	176.36	222.66	231.49

Performance, Nonmagnetic Weights and Dimensions

Item #	NBH11111	NBH11112	NBH11115	NBH51511	NBH51512	NBH51515
Dimensions (L x W x H)	3' x 2.5' x 2.4"	4' x 2.5' x 2.4"	4' x 3' x 2.4"	900 x 750 x 60mm	1200 x 750 x 60mm	1200 x 900 x 60mm
Unpackaged
Weight kg	57	76	98	55	74	88
Weight lbs	125.4	167.2	216.04	121	162.8	193.6