Frequency (Hz)	50	100	200	500	1,000	2,000	5,000	10,000	20,000	24,000

Initial Reading	90.8	93.1	94	98.1	102.6	107.9	108.4	105.6	108.2	105.4

Particleboard										
1 sheet	        74.6	73.9	74.1	80.8	67.4	72.5	59.5	69.3	71.3	71.6
2 sheets	73.3	71.7	72.2	79.1	69.5	69.8	56.5	68	77.3	72.8
3 sheets	73	72.6	73.5	78.3	69.6	70.9	59.4	69.7	70.4	71.4
4 sheets	72.5	71.5	71	78.4	66.5	66.5	55.7	70.2	58.9	66.5

Foam Padding										
1 sheet	        90	92.2	81.7	89.9	92	94.3	98.6	102.8	104.5	102.1
2 sheets	89.2	91.1	81	88.9	91.2	93	96.4	101.7	103.7	98.4
3 sheets	88.5	90	80.4	88.4	90.2	91.3	93.8	99.6	101.5	96.6
4 sheets	87.8	89.1	79.6	87.8	89.4	90.3	93.2	98.3	99.8	95.5

Corkboard										
1 sheet	        82.6	82.6	83.9	86.6	86.4	93.3	87	89.7	94.2	91.9
2 sheets	79.2	79.3	80.4	83.2	81	88.3	69	72.6	86.7	85.9
3 sheets	77.7	78.3	79.7	82	75.6	83.3	57.5	42.7	80.1	76.7
4 sheets	76.6	78.1	78.7	81.2	75.1	79.5	44.4	38.6	78.2	70.9

Styrofoam										
1 sheet	        89.2	90.8	90.4	90	90.6	92.5	96.8	103.1	104.4	98.8
2 sheets	88.3	89.7	89.6	88.9	89.1	91	95.4	99.1	103.2	95.3
3 sheets	87.2	89.3	88.8	88.2	88.8	90.5	94.5	100.4	103.9	93.6
4 sheets	86.9	88.6	88	87.2	89	90	92.9	100.8	104	98.5


	Height	Width	Length	Volume		Mass		Density		
	(m)	(m)	(m)	(m^3)		(kg)		(kg/m^3)		

Particleboard	0.014	0.4	0.4	0.00223		1.475		670.454

Foam Padding	0.0125	0.4	0.4	0.002		0.0359		0.0000718

Corkboard	0.013	0.4	0.4	0.002		0.3355		0.000671

Styrofoam	0.01	0.4	0.4	0.0016		0.0239		0.00003824
	Comparison			Av. Decrease In			Av. Decrease If	
	to Particle board			Decibels 			Masses were 	
	Using mass			(1sheets)			Equal	
Particleboard	0			29.91			29.91	

Foam Padding	41.0863			6.6			271.1676	

Corkboard	4.3964			135.9			597.47076	

Styrofoam	61.7154			6.75			416.57